I dislike Zuck as much as anyone, and probably more than most. But. I really don't understand why people whine about this particular quote. I think this may be one of the best things I've seen come from him. He is perfectly, one hundred percent correct.

They are dumb fucks for trusting him.

Zuck isn't a terrible person for saying that dumb fucks are dumb fucks. He's a terrible person for building a platform exploiting dumb fucks. He's a terrible person for everything except this particular conversation. Not the other way around.