What would you have preferred, that Washington demand the elimination of class enemies and go all Robespierre to end slavery, even after making it illegal, and by extension become an even WORSE tyrant than George III?
That they had done the right thing. The western world was already turning against slavery. The problems were known and obvious. They were shaking the etch-a-sketch, they had an opportunity. They were willing to risk their lives to get that opportunity. But they chickened out on the big one. That’s the fact.