> They could live a very modest but relatively happy life with full of love (on a farm or in a small village)
Did you read the article?
This kids grew up in partially-destroyed houses, to drug-addicted, low income parents. They were probably never given good guidance about what's important in life, might have been physically abused. Their upbringing showed them that you should use violence to solve any kind of problems. No wonder they can't see the benefit of school and hard work, they can't sit still in the classroom and fight other kids in the yard. Then they fall behind, get penalized, the school system spits them out. Their only legitimate possibility for advancement is taken away from them, and they are back to their basements getting bitten by rats. No wonder they seek any kind of escape, including organized crime. Getting killed doesn't sound so bad when you have nothing to live for, no hopes for the future. The only way out is to earn enough money (via crime) and physically move away (into safer neighborhoods, better houses).
The difference between this and formerly-communist countries is that under communism, people didn't really live that bad. Sure, we didn't have the latest technologies, and we couldn't talk about certain things, but we all had a place to live and food to eat, and there were no significant social differences, no one to look up to. No wonder so many people nowadays feel nostalgic for the "good old days". (Not sure if that was also the case in Hungary, but it was in Slovenia.)