@zexsypmp23 What I noticed is that Cambodians share many dishes with Vietnam. Because I consider them Vietnamese food so I think the Cambodians are copying us but could just be parallel development due to geography.
The Cambodians I've met have a love-hate relationship with Vietnam much like that of Vietnam-china. An admiration but hatred for Vietnam's historical aggression. I think southern Vietnam used to belong to the Khmer (cambodian kingdom) back in the 18th century.
A cambodian guy once told me people get into gang/drug because it's part of the "culture". Surely I know more Cambodians who are accomplished and educated than the gangster type but again, I don't travel in those circles so I wouldn't know. I know though there are neighborhoods in So Cal like in Santa Ana or famously Long Beach where there are a large Cambodian population and many live in poverty and get in bad situations. I don't know how this compare to the Vietnamese kids in Little Saigon-Westminster. Somehow I have a feeling the gang problem is more prominent - in proportion to the population in the cambodian community than Vietnamese.
Vietnamese in general believe Cambodians are more brutal than Vietnamese and a common story I heard is the Cambodian had in the past hunted down Vietnamese settlers and chopped off their heads. Another example is the killing field sounded a lot more brutal than what the Vietnamese communist did to the old S. Vietnamese. Now you're comparing one bad guy against another but I think it does reflect a cultural difference.