The persecution of Christians in China is different. They are not viewed as intrinsically against the state. You can be, in many or most case, as is true in the US both a devout Christian and a loyal citizen of the PRC.
The Muslims want to establish their own Islamic third world slum carved out of the far Western Provinces. If the PRC lets them go they have to let Taiwan and Tibet go. If that happens then they have to deal with the independence movement in Hong Kong and Macao. Then what do they do when the Cantonese speakers and Fujianese speakers stand up and say “We don’t even speak the same language!”?
Not that the PRC is always right, just or good in the way it treats Christians but what persecution there is comes for different reasons. Primarily (At least in the persecution of Protestants) the persecution is caused by Christians standing against the corrupt and criminal local government cadres.
At least that is is my experience
Why do we still hear so much about the underground church then, and the state interfering in religious ceremonies? Do Chinese Christians now have access to the Bible in Mandarin? Are they free to worship in any Christian denomination or do they have to attend a state-approved church?
As much as I detest the ideology that is Islam, I don’t think locking them up for re-education is the way forward. This is the communist way though, the state rules supreme.