We've been discussing our topics on a more conceptual level (culture, religion whatnot) but as far as I'm concerned, human behaviour is cognitive, social and psychological, all fundamentally from our biological origin. I get why people might find this angle a bit 'borderline', but I don't see why predisposition to aggression and anti-social behaviour couldn't be both hereditary and environmental? Hardly pseudoscience, given how much of this is being studied in the 21st century, on violent offenders, on refugees with their resilience to high psychosocial stress and on childhood trauma, all in men with low dopamine turnover rates and certain cell adhesion molecules. Again, I don't say 'ONLY' and 'ALL' , but what I'm adding here is that the disproportional representation of antisocial and violent behaviour could be based on this, so 'ALSO'.
Your statement doesn't exclude what I'm saying and neither does my statement exclude with what you're saying, in the context of our topic.
I can only say these things theoretically because, well, it's not like I'm gonna take a plane to Sweden and ask some dudes to kindly form a line, while I swab the insides of their cheeks..