the whole isekai + OP mary sue MC + harem genre creeps me out. that doesn't mean it should not exist or that any 'discourse' of it should start with "you are wrong for liking this show and a mysogenic asshole".
havne't read shield hero yet, but i don't really get what's the issue with goblin slayer, the creepy rapey stuff there is very tame as far as i recognize.
Edit;
having read the 50 chapters of the manga that I could find, I think the argument against the story are pretty stupid.
I don't know how it ends, or how the VN presents things, but the manga is pretty clear on 'rape is bad', 'you shouldn't have sex with loli's', 'bottling up your anger and feeling nothing but hatred hurts you' and even 'doing bad things prevents you from feeling good'. much better than most isekai shit stories i see. the art isn't exploitative towards the female characters, no male gaze, there aren't any scenes when the loli harem innocently crawls into bed with the 'oh so tame' hero. in terms of attitude towards sex, it ranks pretty high.
Also, if you subsitute the MC to being from a minority group, you can get a decent blunt metaphore about racism without changing any other beat of the story.