Have you asked any of the inmates at the Angola "working farm" in Louisiana?
Apparently 63% are serving life terms, 27% more than 20 years.
Doesn't seem worse than China's attempt to iron out a seditious, violent sub-culture that was actually detonating bombs amongst civilians? Most seem to have closed, so the maximum term < 10 years.
Neither are good ideas IMHO - but one way worse than the other? Come now.