Literally why does so many horror manga hate women??

Does anyone else not like it when manga authors only add female characters in the story to be killed or raped and it doesn’t even add to the plot? This mostly happens in psychological and horror manga which are my fave genre so it sucks :/ I literally hate that any female character that gets close to the mc gets raped and the author most likely shows detail as if that’s not disgusting. And in a lot of horror manga, female characters only exist for killing for no reason or too much fan service! There’s tons of quality that don’t do this but it’s still so annoying to see rape thrown around in manga like it’s not a traumatic and disgusting thing.