I think you misread the comment you’re replying to -
> he was very rational and threatened other children to play with him and treat him like a friend
My emphasis. He’s not forcing people like him, because you’re right, you can’t force that, he’s coercing people into acting like they like him.
The point is that since he (supposedly) can’t feel the feeling himself, or can’t understand it, all he has to go off of is what he observes - i.e. the behavior - and you can absolutely force a behavior.