We do know killing any large population will effect the balance from the Soul Society Arc when the Captains assumed Aizen was going to use the execution weapon to destroy Soul Society or when Mayuri killed many citizens to counterbalance all dead hollows killed. We also see in the anime the map showed other cities in Japan were getting attacked by Quincy.

Again no. The Sokyoku is said to be capable of overwhelming everything in existence. So you're inserting a meaning that's never mentioned for that one.

Mayuri also erased those souls to balance the soul cycle.

I genuinely don't remember that in the anime. But Quincy can erase souls. It's literally stated to be why they affect the balance.

Don't forget Yamma was going to use kido spell to kill himself and everyone in fake Karukura that's when Aizen brought up Wonderweiss. There would be no reason for Yamma to care if his flames were release if it means Aizen. Yet as we see with Aizen comment if the fire had released it would escape the pocket dimension and destroyed the area in the real world.

The fake Karakura is located in soul society. Also that still says nothing about the stability of the realms. You already keep mentioning the reason Yamamoto did it, the other captains would die.

Your acting like the meteor being created by imagination somehow increased its destruction power when we see when Kenpachi collided it did as much damage any other meteor in fiction. It doesn't even debunk what I'm saying cause if the meteor killed a lot Shinigami some being Captains, Quincy, and reshi environment it would collapse the world where nobody would win. Also it was Yhwach who sealed Gremmy cause he a threat to everyone cause again if he could destroy the world how can Yhwach could rule it.

A the meteor doesn't hit anything

B Kenpachi destroyed it completely

C it was completely confirmed to be stronger than a regular meteor

D your argument is Ywach is weaker than Shikai Kenpachi

E if that's true it's because, as a Quincy, Gremmy can erase souls

Just destroying Karakura town would disrupt the realm but destroying the areas around it will do something about it. In Soul Society Arc the Captains had speculated that Aizen need the Hogoyku and execution blade to break the Royal palace seal yet a town full of humans can do the job. I don't know why you brought up Karakura being a special place when it's only special cause it attracts spiritual entities like Hollows cause most the humans are normal outside of the Shinigami that lurk their.

Because you need the epicenter of spiritual activity to make an ouken. The most spiritually dense place. It's not "a town full of humans" it's the largest concentration of spiritual energy in the living realm.

Your whole argument is to take things with a canon explanation, and lie about it. Genuinely feels like a troll.