I'd think the timeline they prevented has class d side with him, and him having no idea of how to guide latent talents into proper skills has him force them to run wild, overthrowing the current system but putting into place something similar to the state of witches (i.e. there isn't so much 'responsibility' over the things he listed as there are just beings who both cause and quell them by sheer force of their existence). In this timeline he backs off since Solo is doing it through a method he would've never tried (cooperation), and if a d-day does happen the students Solo helps side with their teacher insteadI'm doubling down on he's the reason for the evil mages cause of one simple thing. It's a future event and while it may not currently be his plan, he is already talking in terms of revolution. It's not that far of a step from there to 'fuck it, tear it all down and we can rebuild'.
Balance is the ideal that humanity constantly trips and over corrects. The line is possibly too fine to place ourselves on so we should strive to improve and embrace change continually.Yah Its a tough balance in real life. Are your supporting the downtrodden or enabling sloth? Are you rewarding excellence or are you breeding hubris?
Thanks for the chapter!
Whoops you already said what's on my mind lolI'm sticking that this guy despite all his preaching is still a villain to the kids. Since he wants to prove that the kids are still strong he probably pushes them to be evil mages to force his revolution instead of actually helping them in a meaningful way. It's a sacrifice of a few for future benefits mentality