Am I overreacting?

My husband and I have lived with his best friend for almost 3 years at this point. I’ve put up with quite a bit throughout the years and our roommate leaves dirty dishes out for days, doesn’t do the dishes and when he does, he purposely only does his and when anyone else does dishes they do them all no matter what. He also will literally pile the trash up and then leave it for someone else to take out. He’s literally thrown trash away, watched it fall out of the can and onto the floor, and then gone to his room. In front of us. Anyways, we’re moving away very soon because of all these issues (and then some personal things going on it our lives).

Today my mom posted a very political thing on facebook that I would say that me, my husband, and our roommate all disagree with heavily. Our roommate proceeded to comment maybe 20 bible verses about being kind to people, because my parents are religious and none of us are, so in a condescending way.

I guess I’m frustrated because I feel as if that’s not his place. He’s maybe been around my parents 3-4 times and has never had a political conversation with them, therefore I believe that his comment would be something I would be dealing with. My husband kindly asked him to delete the comment and he proceeded to do so, then tell him “I have blocked both of them.” (my parents) “and if there’s anything else you don’t want me to comment on let me know ahead of time so I’m not embarrassed.” I just know this is now going to turn into a long-term fight because that’s just how he is.

Am I in the wrong for thinking him commenting/riling up my parents over politics isn’t his place?