Is a layman bound under pain of sin to suspend his rational intellect and submit to a public heretic?

Good grief. We are not even to associate with heretics, let alone submit ourselves to heretics. Which means laymen are indeed required to judge for themselves who is a heretic, so that we might not associate with them. This isn’t hard. Read anything before Vatican II. And don’t get me wrong, Feser is very, very smart. Take that as you may.

This is going to get wild.