Earlier quoted context omitted.
The whole job center/activation system is a Kafkaesque nightmare of demotivation and denigration, according to people who've been through it. Instead of making the stick bigger and more scary, why don't we focus on making the carrot tastier instead? Having a job is not a goal in itself, having a decent life is. A job is simply a tool to that end (and not the only one).
Ah, but that is exactly my point: You can lead a decent albeit depressed life on unemployment support. What's your motivation to improve, especially considering that you are in a position where motivation comes about as often as pigs fly? I don't think there is much of a way to make the goal "nicer" (we can't demand that the jobs get better, and there is already significant benefit: better living standard, better men…
What we should be doing is giving them more help, better educational options, activation courses that actually benefit them, instead of wasting their time. Offer them actual training for another your of job, if the one they used have isn't viable anymore. And drop the stupid requirements to send so and so many applications every week, which is just pointless busywork.
Make a positive change, rather than a negative one.
I say let the couple hundred or so deliberately workshy persons be. You're never going to convince them to work, and if you force them, they'll do a shitty no-effort job of it, probably reducing other people's productivity in the process. Just let them be, let them be artists or whatever. It's the least costly option.