It is very much possible for a communist government like China. They are infamous for violating human rights. For reference, you can check out the current situation of Uyghurs Muslims in Xinjiang. Every possible human rights are being violated for them by the Chinese Government and they are being denied even the basic requirements of life. So it is very much possible for Chinese government to forcefully take over the mining operations under their own control. Probably this is unimaginable in first world countries, but very much possible in China. If this happens, it would not give us a positive impact on the market.
Will not. Do not use communism to discredit China. China actually walks on the capitalist road. China will not control Bitcoin. Free trade is China's most important. They are inseparable from free trade.