Completely agree. The political behavior of the Christian church is well known across history, and entails basically getting the best benefits of the government for itself and persecution or suppression for other beliefs. People in this thread trying to support the political activity of Christians in China seem that have no historical perspective of what this religion did and does up to this day to advance its agenda.
I do not understand why your position, that the Christian church gets the best benefits of government for itself, is in agreement with the position above, that the church should not criticize the government.
I would understand your position more if you objected to the Christian churches operating with official approval of the government. In that case it would be very obvious how the church is gaining government power/favors for itself. But how is this church doing so?
Even if your answer is that this behavior is in the DNA of Christianity and will come out at some point, are not the state-sanctioned churches a bigger threat (and, arguably, the unsanctioned churches are helping for now to question the legitimacy of the sanctioned ones)?