Rather than return offense for perceived offense, or wall people off when you played your part, sometimes the best response is to ignore someone, or find a point of agreement before finding one of disagreement. Call that aspirational wisdom. It is hard to judge intent on the interwebs, but a spoonful of sugar something something.something something.
I can see your points and validate them to some degree, and I bowed out of yesterdays donnybrook pretty early when it started getting personal; I submit for your consideration that sometimes we are the victim of our own POV more than anyone else’s ill intent. When you cannot offer the benefit of the doubt, why keep engaging? Feeling attacked is not always “being attacked”. Strong opinions are not always about you.
Disagreeing agreeably is a big deal. Asking questions to make sure you understand what the other person has to say, and also focusing on communicating what you think about the topic at hand (rather than about the other human being you are speaking to), will generally work better to prevent escalation of rhetoric, in most situations, than what appears to be a character assassination and labeling.
That said, it takes all kinds to fill a freeway. Thank you for considering my POV.