That's letting things go way too far. If an incorrigible can be identified, whether that be via their bad behavior, phrenology and/or an excess of melanin, we can weed them out by age nine or ten, sterilize them to make sure they don't pollute our society even more, separate them from the decent, hardworking folks and, if they won't work for the benefit of the society that's footing the bill for their palatial accommodations, summary execution would certainly be warranted.
The above is satire and quite disgusting. The sad part is all of you (and you know who you are) who nodded along with the above paragraph and thought, "Finally! someone is making sense and telling the truth!" are far too many and far too pleased with your hatred and disdain for your fellow humans. Have you no vestige of humanity within you? Shame on you!