Ok, so what you would like is an area set aside in each country that has no rules and regulations, and people can do whatever depraved acts they want there without repercussions? That sounds like a Judge Dredd plot.
An individual with unsuitable biology who is unemployable, cannot get along with anyone and is not able to adapt to a culture must be able to see an alternative, otherwise he/she will resort to crime, murder and suicide.
I think you need to define this a bit better. What on earth constitutes an "unsuitable biology"? Emos, Gypsies, Rapists, Pedofiles, murderers etc?
We should absolutely not create a safe haven within our countries for murderers, rapists, etc. to go to commit their crimes.
Other people like emos and people suffering depression do not need a place free of law to go to, they need a psychiatrist and medical help.
So... no.