I would be interested to know how much of their GDP comes from crypto mining and the production and sale of mining equipment, but it is quite obvious that this profit is not something that could harm their economy. In fact, China has a huge surplus of funds that it invests all over the world, as it was during the crisis that started in 2008, and I believe that it will be the same in the future.
If every single mined bitcoin would come back to China, including the fees, and by doing so we take care of the ROI miners have to achieve in order to pay the gear, thus we can ignore the numbers from sales of equipment and all the troubles there (chips are made by TSMC) the numbers would be at around 10 billion. Might sound much but in reality, it's almost nothing for such a country, the much blamed wet markets in China are part of an 18 billion industry of growing "wildlife" species for food. So, no way to classify it as harmful, it's more like a mosquito bite.
We all know that China is discouraging the cryptospace,but for some reason the crypto miners aren't leaving that country.
They are either leaving or shutting down, pick one, if not, then get ready an explanation
for this:
Latest Block: 689014 (34 minutes ago)
Current Pace: 74.7138% (1559 / 2086.63 expected, 527.63 behind)
Next Difficulty Change: between -25.2829% and -24.2994%