A component of CPC ideology is the idea that economic circumstance is the root of almost all problems and that, by extension, radicalization is a byproduct of being left behind by the economic system.

People might be forced into job and language training, but they do come out of it with job and language training (and with radical tendencies mostly eliminated). It's a collectively beneficial policy in the long run, but does step on Western notions of human rights quite aggressively (compulsory and forced education is a no-no).

For what it's worth, China has been trying to differentiate being "Chinese" from being "Han" to varying levels of success. This is in alignment with communist ideology. In fact, much of CPC ideology is drawn from Marxism: China is moving towards communism. In that view, China's behaviour becomes much more predictable, much easier to understand, and also much more reasonable. Communist ideology forms the core tenets of Chinese governance, just like the rights of life, liberty, the pursuit of happiness and the principles of liberty, equality, and justice are core tenets of Western democracy.