I was ready to sympathise with humans after revelation of some "mysterious evil" mentioned several times but it seems impossible now. This is beyond evil.
It was stated that only regular (without super powers) member of Yozakura clan can produce the next generation of super humans, isn't it? It doesn't mean that other family members can't fall in love with someone but it can imply that won't have any offsprings.
Man, this is fucked up.
As I see it, our MC decided to rape Freida just because Hero-boy took a liking to her and it slows down their advance to the Demon Lord subjugation.
I can't see bro moment here cuz MC don't even consider his friend's opinion. He just want leave this world with Hero help.