My prediction is that USA is going to be pro-crypto, while China will keep it's anti-crypto policies.
Sooner or later China will have to lift the ban and change its policies to be more crypto-friendly because I believe that with the growth of crypto, they cannot stay out of the game forever. But they will judge its positive and negative effects on their economy, not based on what the United States is doing.
I don't believe that Bitcoin/crypto is going to boost the US economy. Bitcoin/crypto is still just a bunch of speculative assets. You can't boost the economy by pumping the prices of speculative assets.
As Lucius said above, an asset with a market cap of less than $2 trillion, highly speculative, pump and dump at any time. How can it significantly boost or impact an economy with a GDP of $29 trillion? People are really hyped and overhyped about Trump and Bitcoin. Trump is just a politician and Bitcoin is just a highly speculative asset, they are not God or the panacea of this world.