Although no country can completely ban Bitcoin, and the United States will not ban Bitcoin, but if it is to answer this question, in my personal opinion, no matter which country bans Bitcoin, it will not have a huge impact on Bitcoin. Bitcoin has been well-known in recent years. Before that, no country had noticed Bitcoin. Few people knew about Bitcoin and used it. So does it mean that Bitcoin has not been supported by any country until now? For Bitcoin, the state banning Bitcoin is a loss.
I think it is not about how well-known Bitcoin is, but about the fact that everyone realizes you can't shut it down. No regulation will help, no ban will help and actually nothing will ever fully shutdown Bitcoin. That's building trust as people notice how reliable the protocol is. They don't perceive it as a protocol, but as something that can't just be destroyed at will. Hence, it fulfills the store of value function despite its volatility.