My roommate J (22F) and I (21F) have been friends since childhood. We have a third roommate D (23F). About a year and a half ago, J started dating L (28M then, now 29M). L has a habit of playing devil's advocate and saying inflammatory things for the sake of argument. He has previously said that women lie about SA "all the time," a whole slew of icky things about mental health and how medication is morally wrong/shameful, and a bunch of rude, demeaning comments about gay and trans people. Most recently, we went out as a group for drinks. He loudly said a bunch of nasty things about trans people or men who "dress gay" in front of the clearly lgbtq+ server. When we changed the subject, he began to talk about how every man wants to f^*k every hot 20-something woman. We told him that was not true and irrelevant to the conversation we were having, which was about a friend of ours and a man who considered himself her father figure. L then said that all fathers want to f^*k their daughters. I almost spat out my drink and immediately told him that was perverted and not true. He doubled down and continued to argue. Here's where I think I started to be an ah. Both J and D were uncomfortable and tried to end the conversation. I persisted in telling him he was wrong and that he was projecting some major problems. He apologized several days later over text. He basically said he was drunk and didn't know what he was saying. I essentially said that wasn't good enough. We later talked about it in person, and while he said sorry, when I went over all the gross stuff he's said, he insisted on explaining himself and really just doubled down. AITAH for continuing to argue when people were uncomfortable and not letting him get away with his apology? WIBTA if I talk with J about his red flags and ask her to reconsider her relationship with him?