You know that other countries do just that especially China.
https://en.wikipedia.org/wiki/List_of_websites_blocked_in_ma...
You can also pick one, and check with a tool like this:
https://www.comparitech.com/privacy-security-tools/blockedin...
Their operation wasn't suspended for a compliance reason. This article lists some of those, and their (suspected) reason for the ban:
https://www.businessinsider.com/major-us-tech-companies-bloc...