they celebrating that Chinese miners shutting down and so the remaining western miners can push for taproot.
You do realize that all the biggest Chinese mining pools - F2Pool, AntPool, Poolin, and ViaBTC - have all signaled their support for taproot?Yes I do realize and I know well that the recent developments in China should result in the suspension of any signaling period! Signaling for taproot under this conditions is unacceptable!
Regardless of the whole taproot activation... I am more concerned about the whole "China vs. USA" rhetoric that the OP seems to have bought into. 
I tell y'all something and try to be short.
Foundry USA was the fastest pool to signal taproot. Foundry USA owned by the Digital Currency Group which also the owner of Blockstream and currently employs achow101 and gmaxwell was a former employee.
But before the signaling period they did know that China will soon announce this crackdown on Miners, they know it so they prepared with Foundry USA they working now to move Chinese miners into U.S. jurisdiction and on that way implementing a "soft-fork" which seems like a horse with a "hard-dick" behind your back waiting for your signal.
Don't come here and tell me that gmaxwell and achow101 don't know nothing about the Foundry USA, Blockstream and Digital Currency Group BS, they also own Grayscale which buying Bitcoin like a fucking maniac, there is no other reason behind taproot, Grayscale, Foundry USA, DCG, and Blockstream plans but brutal DOMINANCE and OWNERSHIP owner the Bitcoin software.
All Bitcoin Core developers should be forbidden to work for any cryptocurrency related for-profit corporation.
Taproot is a product of Blockstream and I bet that gmaxwell has an unfulfilled contract with the Digital Currency Group to implement taproot. It is contractual so it must be done. Is that right?