Sex is a huge part of human existance. You can't just ignore it. Having sex with people in a natural way requires empathy and compromise and working together with someone on a very intimidate level.
The way right wing people deal with this is to have a rule driven way of doing sex that requires very little of this. The most common way is to have the women stay still and not do much while the man fucks her, and limiting it to men doing women. Rules are simple and easy to follow. And there are of course the rules on how you get to the point a women will be ok with having sex with you.
Sexual liberation means just following these rules doesn't work anymore. And if these people just learned to be empathetic and do the work to actually get with someone instead of trying to do it without having to learn anything, they wouldn't be right wing weirdos.
I uh, and literally about to bang someone rn, so I can't wrap this up nicely but I think you can tell where I'm going with this.