@Ozman just like with Anime adaptation, many of the smaller World/Character building details get lost for the sake of flow and or keeping the "Short Attention Span Theater" audience interested.
Jeez, I don't know why amazonian women are called amazons. they are just female barbarians. They kidnap and rape the opposite sex, fight, destroy, kill and steal just like barbarians. They generally live in the same conditions
So rapist savages go around freely kidnapping people in town and everyone is alright with that? MC didn't even heard of them? Extremely unrealistic. Given culture of this town it wouldn't be surprising if after repeated offences they would be hunted down.
Unless people, laws or other familia doesn't matter if you are in familia. Which would mean that MC could assassinate everyone freely without any consequence. So yeah... Logic doesn't exist here.