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.