I don't know where yall come from but I've heard stories like this in passing many times growing up, but maybe that's because I'm older than many of you and also have no vested interest in lying about it.
This happens for many reasons, for example, a guy is having sex with a woman, he gets too intense, she tells him to slow down, he does and starts back up with the roughness, she tells him to stop and he continues anyway assuring her that he'll chill.
I've thought deeply today about why nikkas are suggesting this isn't a thing and the only thing I can come up with is that many nikkas know that they've been in precarious situations with women in the past that could be interpreted as rape or something close to it. nikkas really feel like "if she let me start, then she should also let me finish" but too scared to openly admit it for whatever reason so they attack "feminism" instead of the culture that makes this type of behavior okay in their eyes.