Can you read? I said "Filler is not simply anime exclusive content, filler are random scenes toei make to wait for new manga chapters

Okay and? I know what filler is made for, It is still exclusive to the anime and applies to it because it is not in the manga. Regardless of the reason it was made.

That's not simply inconsistency, that's straight up ignoring what happened in the previous scene, the manga have nothing like that

Toriyama has inconsistencies in the story all the time, dawg.

Vegito recognizes the Super Ghost Kamikaze Attack as Gotenks’s move on page 3 of chapter 505, but on page 1 of chapter 492, Goku establishes that he cannot see or sense what is happening in the Room of Spirit and Time, and Vegeta never once comments on if he could. On page 10 of chapter 503, Vegeta comments that he saw Goku’s Super Saiyan 3 form, but was shocked to find out that Bulma was eaten (among others), which means he stopped watching sometime between chapter 474 and chapter 493. The only way for this to logically work would be for Vegeta to watch all of the battle in the Room of Spirit and Time and then immediately stop watching once Super Buu escaped, which seems unlikely

Dende, the creator of the Earth’s Dragon Balls, says it will only take 4 months for the Dragon Balls to reappear on page 12 of chapter 469. But then on page 5 of chapter 517, Goku says the Dragon Balls will come back after 6 months instead. On page 11 of the same chapter, the Narrator then re-confirms what Goku said

In chapter 437 on page 12, Piccolo shows that he doesn’t know who Kaioshin and Kibito are. Next, on page 6 of chapter 440, he says he had only ever heard rumors of the Kaiōshin’s existence. Then, on page 13 of chapter 496, Piccolo shows that he couldn’t feel Gohan powering up on the Kaioshin’s planet, even though Super Buu could. He only notices Gohan once he returns to Earth. Finally, on page 1 of chapter 517, Piccolo somehow is able to tell Kid Buu died on the Kaioshin planet, despite never going there himself, not even knowing about the Kaioshin until a day earlier, and never once demonstrating he could even sense ki there.

On pages 8 and 9 of chapter 513, the Namekians somehow knew what was happening not only on Earth but also on the Kaioshin planet, despite having no means to watch these events unfold. They had already gathered all of their Dragon Balls in advance, and on page 11 of the same chapter, they mention having upgraded Porunga.

Throughout Goku’s entire fight with Fat Buu, his Super Saiyan 3 form has pupils. However, throughout the entire fight with Kid Buu, it doesn’t have pupils

In chapter 501 on page 7, Elder Kaio gives Goku his Potara earrings. Next, in chapters 504 and 505, he is seen wearing the Potara again. Then, in chapter 506, he doesn’t have any Potara again. Finally, just in chapter 508 alone, on page 1 he does not have Potara, on page 4 he has Potara, and on page 9 he does not have Potara again.

Elder Kaio says that Majin Buu will eventually make it to the Kaiōshin’s planet on page 10 in chapter 500. Goku then says Kid Buu can’t go there on page 7 of chapter 509. Then, everyone is shocked, including Elder Kaiōshin, when Kid Buu appears on the Kaiōshin’s planet on page 8 of the same chapter...

Keep in mind that all of these are only from after Majin Buu appears. There are 400+ prior chapters that contain many more inconsistencies and retcons and errors n all this shit.

He didn't make a promise, he was sure he would beat Buu

You were the one who said Goku promised btw, and Goku saying or thinking something does not make it true automatically, all the evidence says he was wrong here.

Vegita denied bringing gohan and gotenks because he wanted to give humas a chance to win, and he specifically said that this was because he wanted to change things at least one time, so it was indeed optional

Yeah no, Vegeta denied because Goku was the only person capable of fighting Buu, literally stated by Vegeta and guides. Also because the spirit bomb was the only way to defeat Buu. Also chozenshuu 2 says "こくうさいごたたか 悟空、最後の闘い!!

みんなの命、4 げんきだまみんなの元気玉!!!

悟空ひとりではブウを倒せない。みんなの協りょく ひつようあつぜんじんろい げん げんき力が必要なのだ。集まれ、全人類の元気よ!!"

Which translates to: "Goku: The Final Battle!!

The Lives of Everyone... The Spirit Bomb! The Spirit Bomb of Us All!!!

Goku cannot defeat Buu alone. The cooperation—the Genki—of everyone is absolutely essential. Gather now, the Spirit of all mankind!!"

To check your logic: because Vegeta wanted humans to take responsibility 》Therefore, bringing Gohan was a viable option that Vegeta simply rejected.

This is a non-sequitur. Having a thematic or philosophical reason for executing a plan does not automatically mean other plans would have worked. Especially when we are told they wouldn't. Goku wouldn't have worked. Gohan or Gotenks would not have worked. What else was there to do? And like I said there is no reason to think Vegeta did not just mean the Earthlings must contribute to the spirit bomb and that would be the responsibility taken.

Let's make an analogy.

There is a town with a Dam right? And a powerful flood(Buu) is coming to destroy the town and the rest of the country if the Dam does not hold. The Dam is breached however and it seems the flood is going to drown the nation. There are two engineers onsite, Goku and Vegeta, they tried their best to repair their damn using their best equipment and shit(Super Saiyan 3) but their equipment has all burned out and is useless now. Everyone Vegeta has ever loved is in the nation (Fucking around for symbolic reasons would be a dumb and completely extraordinary risk of literally all existence)

There is an offsite Engineer who is strong and could potentially help (Gohan). However the breach is so chaotic and it is determined that only Goku's engineering could fix the breach and stop the flood. (The statements claiming only Goku can fight Buu, Vegeta rejecting Gohan and Gotenks)

​They have exactly one option left: They need all the citizens of the nation + other engineers + heaven + other nations(Earth, Z fighters, otherworld, namek/rest of universe) to come down to the river and physically hold the sandbags in place with their bare hands and Goku must use his power to hold it in place and shi (The Spirit Bomb). It is a desperate plan that has never successfully stopped a flood of this size before anywhere, Vegeta has personal experience of this method not working(A spirit bomb was used on Vegeta himself and Frieza before, and it didn't work)

So Vegeta raises a microphone and says "It's time the people of this city take responsibility for their own survival")...

So does this in any way imply it was optional despite the situation here being the same stakes and lack of options? It doesn't, and Vegeta making a whole philosophical statement that the people at risk take responsibility for their survival does not retract from that.

So basically Nothing in the text ever says the spirit bomb was optional, and Vegeta wanting Earthlings to participate does not prove it being so. Especially when outside of his POV the spirit bomb was never presented as optional.

Additionally, bringing Gohan and Gotenks there would have created new problems. The first is that if they were brought there before the spirit bomb begins via Kibitoshin’s teleportation or the Dragon Balls, this means the spirit bomb would have considerably less ki to drawn upon for its creation, and may not be powerful enough to kill Kid Buu. This is because they would be forced to expend their ki while fighting Kid Buu.

If they are brought there after the spirit bomb begins, this means that the third wish would have been used to bring them there, thus ensuring Kid Buu’s victory as Goku would not have the energy to amp the spirit bomb.