Oddly enough I don't actually hate the hero or the rest of the party. I mean there's definitely something up with the hero and the rest of party is for sure naive. But honestly most if the blame falls on the leaders who picked them. There's something crazy off about all of them (church aside) picking low leveled, naive party members to help the hero defeat the demon lord. I feel for Ares for having to deal with that kinda weird nonsense and being forced to be the adult in a party of what are essentially inexperienced kids. ( ̄∇ ̄")
I agree that the leaders who formed this party was to blame. But srsly I hate the hero is that he doesn't understand the situation he's in. Our mc basically had to explain what's "common sense" to him about if the party members are weak they'll die having to protect him. The hero is being all yandere mode idk and it's worse when he tries to help others. He's digging his own grave and he should THANK our mc for putting up with his crap.
Ah I see. Hmm welp I got theories now