I can't wrap my head around that people defend one of the richest man alive while just hand-waving away his awful behavior and consequences of his actions.

I can acknowledge that his companies have done some interesting things. But he and his companies also have contributed to suffering and evil. One might see this as simple arithmetic and say that on balance, he has done good. But this is simple arithmetic. You can't just make the suffering you have caused go away by building cool technology that might benefit some other people.

How we can let such concentration of power and wealth go by is beyond me. If you think this story has a happy ending, you haven't been paying attention.