The Black population in the US is disproportionately impoverished. Should we round them up into re-education camps?
It's policy based entirely in ethno-nationalism (racism).
The US had a Civil War over separation and slavery, but we didn't establish re-education camps for all the people who were on the losing side. You didn't see Germans forced into re-education camps after WW1 or WW2 (at least on the non-USSR side).
I don't know of ANY instances of this kind of re-education thinking in first-world countries. Even third-world countries don't usually consider this moral. It's basically limited to second-world (communist) despotic countries. In recent times, I've heard people talk about re-education camps in the US, but (big surprise), they're always alt-left (communists, antifa, whatever).
1. Anti-terrorism / Religious Extremist Activities 2. Poverty alleviation
We have certainly seen similar situations play out in the past (e.g. US & Middle East), with different approaches. China's approach is to eliminate "ethnic separatism" through these "re-education camps". Not ideal, for sure. But what would be a better solution?
If we had terrorism in the US -- in fact, an entire state of people subscribed to that mindset -- what's the best way to deal with that?
(This is, ofc, assuming China's terrorism claims are real)