Here's my carepost on the subject:
Violence is fun, sex is fun.
These are biological realities i think.
Pretending to beat people up is fun. Looking at nice milkers (or dongs) is also fun.
The "disproportionate sexualization of women in media" is really a separate argument that people have inevitably conflated with the above one.
Around 2010/2012, when this stuff started to become the daily topic on GAF, that is how it was sold: "Sex isn't the problem, the problem is the imbalance! You can have your Bayonetta/Dead or Alive, but you also need less sexualized examples of female characters" was a very reasonable argument, one i still agree with, yet now you go on Resetera and you can see clearly how every single example of (female) sexualization is bad and should be purged, which to me is plain prudishness with another name, and it's why i stopped taking them seriously long ago.
Then if you want to talk about women's body standards in society, that's a third argument still, and i don't think it has all that much to do with anime tits.
I've said this before when people bring this up, but the root reason people are opposed to one thing but not another is they believe one thing to affect real life behavior or beliefs more than another thing.
For example, when I played Xenoblade 2 and my kid watched, I wasn't worried about him seeing giant boobs or violence, because he was too young to care about the former, and the latter wasn't about to translate to real life violence. But I did care about the language, because kids are like sponges when it comes to words. Is violence worse than cussing? Of course. But violence doesn't easily transfer from fiction to reality, while cussing does. So I was more worried about the latter. And I'm still not okay with him seeing gore, because it would likely give him nightmares, which affects his real life.
So for people who are fine with violence but not sexuality in fiction, their position is basically that violence doesn't translate to real life, but sexuality is categorically different in that it can affect someone's real attitudes towards women. I don't necessarily agree or disagree, but that's what the argument would be. For a sane person, anyway.
Of course, when it comes to RE, they're worse than prudes; they're virtue signalling prudes that in the dark of night go jerk it to child-like wolves by themselves then get on a forum to decry any hint of sexuality in a game, not because they believe it, but because it's the only way they can feel better than someone else.