They will never be able to stop it completely, because that was the design of cryptocurrencies, but governments can easily prevent mass adoption and just push crypto into black markets. This was always the risk for investors and users. But Bitcoin didn't get crippled by recent news from China - it was already correcting after reaching $5,000 ATH, the FUD caused a big dip, but now it's back on track - $4,350 is probably only a 3-5% lower from where we would have been without FUD. It's a short term damage, nothing special.