"Why are so concerned with people who are happy to live at low subsistences levels so that they don't have to work?"
Unsustainability. My very politically incorrect reason is that they are BREEDING more of the same at a faster rate than those who are working for a living. Simple math tells us what the end will be if we don't figure out a way to end the mindset of the takers. My (baby nurse) sister has an answer to the problem. The first baby to an unwed mother on welfare is an "accident". The second -- tie their tubes. At least that would cut off an expanding supply of welfare recipients.
Don't get me wrong. I am all for helping those who are truly needy, but cut off those who are parasites.