Bitcoin is decentralized, and therefore we have alternatives if we decide not to use dollar, and governments will not be able to impose guardianship over us.
The dollar is involved in every meal we eat or coffee we drink. Global supply chains depend on dollar. Most fuel is priced in dollars, transportation and insurance vehicles are priced in dollars, and even countries that have begun to reduce dependence on the dollar, the dollar still represents the largest part of the budget, so replacing the dollar is currently impossible.
Let's not get our hopes too high. The USD's dominance can't last forever. It will slowly decline until another currency takes its place. American decline doesn't happen overnight. I think it will take 10-20 more years before the USA loses superpower status. Countries are already getting prepared by looking for alternatives to the USD (aka De-dollarization).
Don't count on Bitcoin replacing the USD, though. Especially when it's decentralized and out of the hands of mainstream governments. Even El Salvador uses the USD alongside BTC. With rising national debt in the US, its "death" is becoming certain each day. Who knows how the future will look like without the US in play?