It started off that way—remember people buying pizzas and domain names with bitcoin? That is the sort of thing that people do with dollars.
But it became quickly apparent that cryptocurrencies suck as currency because they are so strongly deflationary. However, that makes them work great as commodity financial instruments.
So viewing crypto as a financial market (not a currency), it benefits the U.S. to have as much of the market transacting within the jurisdiction as possible. Then you get the tax benefits, and ancillary benefits (e.g. rich crypto owners buying things).
US has enough cultural and institutional flexibility to accommodate dissent. First amendment protects almost any speech against the government, including insulting the president.
Compare that against China, who simply cannot tolerate citizens having any freedom of expression beyond what the party allows. See "tanks of tiananmen" smart contract[1] or "winnie the pooh" NFTs [2] - the only thing CCP can do at that point is to ban the entire blockchain ecosystem. But if blockchains are a big success in the rest of the world, CCP also has to cater to it just to keep pace with the West's tech progress.
[1] https://bscscan.com/token/0xb79c9c73e8c7b4be7244e697e6bdb9f5...
As an aside, one could easily replace 'crypto-currency' with 'fascism' in your comment to accurately describe why Republicans are following a similar tact in spite of the benefits of a democracy
The best coup would be Bitcoin as a gold that backs USD. This would force the price up well above a million. It might also make the world dark. $1 per kwh. $10 per kwh and so on.
Other coups would be lebanon style power interruptions while energy is diverted to mining with various subsidies.