re: Liberal brother in law & his wife arrived yesterday wearing masks inside the house

I have a super liberal relative or two.

Generally I just avoid any political or religious related conversation with them. While playing board games or such, I’ll take little digs at them in the name of fun. If they try to push the conversation in that direction most everyone has learned to leave the room or conversation and not let them dictate the conversation. Which I’m sure frustrates them. I usually try to troll them into snapping and going on some silly emotional political rant so they make an arse of themselves.

Another fun idea for your specific situation would be to buy and wrap them a box of condoms, with a little note like, “so you never have to explain to any children of your own how racist / xenophobic / transphobic / etc and backwards your family is”