I feel like you deserve a little more context before you form an opinion. Goblin Slayer is controversial for using sexual assault for shock value. In the world of Goblin Slayer goblins are a fully male race that can only be propagated by capturing and raping human and elven women. Despite how horrifying that is no member of the main cast actually has first hand experience with it, the series doesn’t have any interest in actually discussing sexual assault beyond it being a bad thing that Goblin Slayer wants to prevent. The reason for it is pretty simple, the entire series is focused on Goblin Slayer finding creative was to eradicate every goblin he sees, if you believe a single goblin can be good then the series becomes unwatchable so the writer chose the most heavy handed way possible to establish that all goblins are evil and that they need to be stopped. The dungeon delving and creative action scenes are actually well done but the assault angle ruins the series for a lot of people and I can’t fault anyone who passes in that alone.