A little advice about social media from someone who has been on social media since it has existed. You don’t have to argue. When someone wants to argue with you, you should block them. There is no good outcome possible from arguing on social media.
@Dave Winer ☕️ In most cases you don't even have to block someone: simply ignoring some posts or replies will do.

People who appear to be assholes can sometimes turn out to be really decent people that you can have a good discussion with.