Don't take the bait! My husband used to do the same, he was always trying something to pick on me or the kids, just for the sake of starting an argument, somehow they need us to argue/scream to justify their decisions to act the way they do. It's just a very twisted way to reinforce their point of view. We are humans so de facto imperfect, so it's easy to find something to pick on, just ignore him, be aware that it might intensify his behavior for a while, while they don't like us they still need to feel that we are under their power/pressure/manipulation. Also ignoring him when he tries to start an argument is part of detachement.
Me 52+ WH 57+ Married 20 + Piecing since 2016 (ready to give up...)