I've read several books on Joseph McCarthy at his height of power, and one curious thing about him was that all the books said that he could viciously attack people and smear their good name and reputation, and yet he would meet them a few days or weeks later at a Washington or New York party and act friendly and even jolly towards them, and would express surprise and even shock if they were angry or upset at meeting him. It was as if he thought that his attacks on them in congressional committees and press conferences was just a show or a game, no harm done, and his targets should therefore treat him perfectly normal in social settings.
Modern right-wingers and Trump defenders seem to have adopted this same attitude. They can defend everything Trump, or administration officials, or GOP leaders, does or says or tweets, post a lot of offensive stuff on social media themselves, yet they act almost surprised when others (including members of groups they or Trump have attacked), get upset or snub them at social gatherings and events. It's like a game to them, and they expect everyone else to see it that way, and are stunned when others take their words or tweets or actions seriously and are offended.