I personally am taking issue with parent's claim that the four liberal individuals mentioned are proof that it is "safe" to express potentially controversial op

I personally am taking issue with parent's claim that the four liberal individuals mentioned are proof that it is "safe" to express potentially controversial opinions, especially when they run afowl of the domininant left wing viewpoint in America. Grandparent was clearly talking about ordinary people when describing the negative effects of "moral sanctimony" on public discourse in America. I would agree with you that public speech should have consequences. I probably don't agree with you what those consequences ought to be -- what sort of "attacks" are appropriate given what is being said in what context. I don't think either of the two ordinary people I used as counter examples deserved the treatment they got for what they said. I think it's bad for society if every difference of opinion is reacted to as being completely intolerable to the point of ending a career. In addition to creating resentment that men like Trump (and also people who are far worse) can exploit, it makes it impossible to discuss other controversial issues in the future. If we care about being good people living the best lives we can, we need to be able to discuss unpopular ideas, because we don't know which ideas that are considered unpopular today will be ones we will later find to be practically useful or morally virtuous tomorrow.