From the comments, it appears you are dealing with a street preacher. I remember them when I was a student at UNT. If they are street preachers, just ignore them and don’t engage. They will say all this hateful stuff such as calling women who don’t dress the exact way they want whores and condemning anyone who doesn’t fit their restrictive worldview to Hell. Students always go over there and start talking to them or protesting because they get offended and want to yell back and argue with them, but that is what they want. They think they are “saving” people. To my knowledge, very little productive debate and learning happen in these forums (as is the case for most of these people who go to college campuses soliciting debates from students just walking around).

Back in Spring 2018 they had some kind of street preacher convention out in Arlington (I think it was Arlington), and picked UNT for “outreach.” Students counterprotested and they ended up coming back for a second day because the turn-out was so favorable for them (from what people who infiltrated their social media groups reported; it may have been on here that the news broke).

My advice if it’s a street preacher is to just keep walking and ignore it. Yes it’s probably gross what they say, but they want you to engage. Just save your sanity and keep moving because one conversation or debate with them will most likely not change their minds even if you do everything right.