I never said to kick a mentally ill kid into the street to die. If nobody can deal with the situation, I am sure there are other options, but everyone has to try was my point. I would not venture to try to solve that problem without professional help. And seriously, sometimes suicide is the best option for certain people, if they have run out of options. Not everyone cannot be helped. That's why we have this forum.
The ones I am talking about are just lazy party animals. They are not isolated at all. They just think the world owes them a living. This has nothing to do with Hikikomon or any other serious mental issue.
First of all, I don't like the word "Lazy" because it doesn't represent the actual problem the person has (everyone have problems even if little and I won't talk about how life itself is a problem..etc). This word also encourages the abuse or exploiting and controlling others.
So I'll assume we talk about the opportunistic people and not ones with mental or health problems. What make them opportunistic? Its true they are a part of it and how they think.. etc (if we assume free will exists) but its also how the system works and how people are divided into hierarchies and classes which promotes opportunism in several ways.
Also I won't start about the antinatalist argument. I'll bypass the reproduction itself and focus on the results. There are no expectations and children could be anything. If you bring children to a world of mess, this is not a strange thing to get. There are more factors than those children. Environment, other people, politics and many other things can shape them and its unfair to blame them completely.
Finally, it can be a reaction to the surrounding negativity. Many people have activities and things they like to do but they get discouraged many times then they stop doing anything. This is not limited to hobbies and interests but even if someone wants to do an individual work they'll try to hinder it and force him/her into the abuse and exploitation of the corporation.
Note that this is a theoretical talk assuming there are no problems and of course those people have more problems which makes everything worse.