Nobody is making you defend Bill Gates. Trust me, he’s fine. I mean, personally he’s fine.
I mean, he’s a predatory asshole that sexually harassed women at Microsoft and may have done even worse stuff in that arena, was a known dick of a boss, ripped off everything he ever accomplished from competitors - some of whom considered him a friend before he betrayed them. He also started a foundation to spend a lot of his hoarded wealth in a way that feeds his inflated sense of self worth and value, secure in his thinking that he can do a better job of solving the world’s problems than anyone else. But he’s ok. Nothing is bothering him.
So, yeah. Nobody is making you defend him. You are choosing to. Even though he does not need your help in any way