They’ve had the second highest hashrate for a long time. It’s not that they failed at banning it, it’s that their government is in control of mining it.
You honestly believe you’d get the truth out of China. Just like America, they want as much bitcoin as they can before supply is out. What’s left like 1.9 million btc to mine? Yeah, I’m sure every government would want their citizens to get their hands on that 🤪🙄 instead of buying from the fed once there’s nothing to mine.