Especially one that is spearheaded by the west since it is almost always done with the purpose of subverting the nation. Until christrianity is changed back to its routes and is purified of all political intent, it’s better for China’s safety that such movement is monitored if not outright curtailed, like every other religion that have similar intent ( although admittedly unlikely given americas religion preferences)
I'm sorry but this whole line of argument in the thread is becoming strange.
1. (someone mentioned this point) Nestorian Church of the East is not extinct. It still exists in Iraq, Syria and has small groups in India. They will find it very funny if someone thinks they are Westernised
2. Religious politics are very diverse, it doesn't ever work out the way the original proponent developed it. The Russians and Ukrainians had the same Rus Orthodox Church, with the same religious leaders, for 1000 years, but did it help to keep them together? In Syria, the local Christians overwhelmingly backed Assad, and the US chose to back the Sunni terrorists. In Bosnia and Kosovo they also backed Muslims in war against Orthodox serbs and to a smaller degree Catholic Croats. In Latin America, a very large number of Catholic bishops and priests follow in whole or in part Liberation Theology, which is based on Marxism, and strongly support the socialist revolution movements. The Vatican can't stop them, the right wing military governments couldn't crush them. That's why in Latin America, the majority of Neoliberal supporters like Bolsonaro's followers are Protestant, not Catholic. Meanwhile in Eastern Europe, the Vatican practiced Ostpolitik, to accomodate to Soviet conditions about clerics. Then what happens? the Archbishop in Poland Karol Wojtyla went to defy the Pope and continue ordaining priests, eventually work with the CIA, and then he got elected as Pope John Paul II - and purely by accident because his predecessor suddenly died after being elected. Christianity in SK, Taiwan and HK are pro American because ALL the educational institutions (religious or not) in those places were subsidised by the US for decades. But the current Pope blamed NATO for provoking the Ukraine War.
The US regime has learnt to exploit diversity while no one else has (or wants to) develop these techniques, and that is part of why they are so dangerous.
3. (somebody else mentioned) Why would christianity be any more foreign than the "Arab religion" Islam, or the "Indian religion" Buddhism? China even had a form of Confucianised Christianity under Matteo Ricci in the 1600s in the Ming dynasty, before the Chinese Rites Controversy. There are a lot of options to redirect people's interests and hobbies, without pushing them into rebellion!