I also walked away from a tenured position. I did it literally to save my life. In my case it was determined bullying from my department head, which turned into departmental, and then faculty mobbing. The last straw was being assaulted by a male “colleague” and then having the Dean rule that it was my fault.
I even tried teaching in a different faculty, but the culture of bullying and of protecting mediocre academics for no reason I can see other than that they pander to those in power, meant that ultimately, they would stop hiring me (which they did).
There are many things I agree with.
I graduated college at 19. I landed a tenure-track job at 29. Now I’m quitting academia for good.