Non of the people you mentioned that collabed with Areallyweakguy are "converts". Ain't no way you believe the narative that he says on every video, saying things like "first time BBC taker", "cheating on husband/boyfriend" type shit. Granted some might be true, but for the most part, it's just porn titles to appeal to the fetish. nordichotwife, Maria bolona, brattysuzy, mina — all of them are either prolific content creators, or have couples and relationships that are into cuck fetishes. They weren't converted, they already had that type of relationships and were seeking other collaborators.
Bro. I get it, porn and all, fetishes and all. But it should be on their own terms. You shouldn't force your fantasies on real life people. If she does it organically, then hey you got a bonus if that's your thing. But reaching out privately to try to pressure or perhaps "manipulate" her to collab (and in this case cheat in her relationship) is just creepy, not normal behaviour, honestly insane.