Is the base chain counted as well?

There are currently too few regulated legitimate platforms on the market, with only Coinbase being publicly listed on the US stock market, which means Coinbase is financially transparent to the public and regulated. It hasn't created chaotic platform tokens, resulting in much less exploitation of retail investors. Essentially, most American asset management companies trade Bitcoin on Coinbase. However, we Chinese people are unfortunate; Coinbase actually does not allow Chinese people to open accounts, supposedly to comply with so-called Chinese legal regulations. Which Chinese law actually prohibits citizens from investing in and trading Bitcoin? Who knows the real reason? Why are Chinese people so miserable, bullied domestically and discriminated against abroad?