We don't get to see much of what china does online. Twitter is blocked in China, BTW. Ever heard of the Great Firewall?
Just saying that holding majority hashrate for a decade is certainly a sign. Also Bitmain is still based in China. I think the people there are embracing BTC more than you give credit.
They use BTC in different ways that we might not recognize. For example, seed phrases are less popular because of the English words in BIP 39. Chinese private keys are more likely to be represented as numbers.
Someone in the English speaking BTC space should totally do a travel-documentary on this.