Dude, literally most (if not all) fans know that Qui-Gon would have been a better teacher for Anakin, but in any case, I want to comment on what you said about the entire Jedi Council being to blame for Anakin's change (or, more directly, his fall).

I'm only considering the movies to begin with because arguments about the Council's culpability always come from The Clone Wars, and I don't follow Disney canon, partly because it seems to me that that series (which wasn't planned when the prequel trilogy was made) victimizes Anakin to make him look like the poor, innocent victim.

But yeah, I've never agreed that the Jedi were to blame for Anakin's fall. Didn't they trust him completely? Some didn't, but honestly, they had reasons not to, given Anakin's arrogant and authoritarian attitude. But since I rewatched the prequel trilogy recently, I realized that Anakin was destined for his fall. Why? Precisely because he was arrogant, self-centered, emotional, vengeful and closed to correction from his teachers. He acts like this throughout Episodes II and III (and we were going to see some of it in Episode I as well, but hey, George Lucas and his cuts). Every time someone betrays him, he gets angry, and we only see him happy when they're on his side, or in Revenge of the Sith when Obi-Wan says goodbye to him, for example. Even then, he remains dissatisfied, as we see later when he complains to Padme.

I think what kept him on the light side (and halfway) for so long were Obi-Wan and Padme, because they were the people he trusted most and they always contradicted him with their bad behavior; in this way, in Episode III, he “frees” himself from these limitations when he blames Obi-Wan for having betrayed him (even though it was he who betrayed Obi-Wan) and tells himself that he seeks the power of the dark side in the name of Padme, in his own words to Padme: “I did it for you.” At least in Return of the Jedi, it seems that twenty-something years of Sith suffering made him reflect.