Currently there would be no such factor from USA than can stop BTC though war ongoing between Ukrain and Russia is getting tense day by day and other wars can make things bad for all the markets in the world so that's not a problem. In short, these upcoming years are too bullish for crypto market. Wars can stop bull season, the selling from whales and from ETF holders etc. can end bull season.

One thing is must to happen to end bull season as every time there was a event that caused an end of bull run. I think this time war will be the main reason, or Selling from ETF companies are the main factor coming to my mind that can cause bear market.