https://en.m.wikipedia.org/wiki/Websites_blocked_in_mainland...
Google, facebook, instagram, twitter etc. Those are one-way streets that provide next to no jobs, little tech transfer and no tax revenue to the countries they do business in, but tend to outcompete the local rivals if left to it, and are proven to provide a convenient surveillance platform for American intelligence.
It's surprising that any country would allow that to continue unchecked. The Chinese solution is certainly not great but I doubt the US would allow Chinese companies to keep a daily log on the activities of most US citizens and businesses. Or to replace entire industries like advertising without providing jobs or taxes in return.