Here is a US general Wesley Clarke explaining in his own words in 2000, before 9/11, how the US was already planning to invade 7 countries, all of whom had the nerve to act outside USD hegemony and some of which had the audacity to run their own central banks outside the approved system.
The US was not pushing to invade those countries in order to prop up the USD, it was pushing to invade them because of aid they were sending to other countries and to assert control over those areas. Where are you getting from that Wesley Clarke video that this was primarily about currency or that aid/funding going over Bitcoin would remove those motivations?
I mentioned elsewhere that you can buy and sell oil with Bitcoin, but it bears repeating: Bitcoin doesn't make exploitation, theft, or manipulation impossible. The United States does a lot of unethical stuff in order to secure value and control, and moving from USD to Bitcoin doesn't get rid of the concept of value. It doesn't mean that the United States would magically stop wanting to control the financial infrastructure around currency exchanges, it doesn't mean it would stop caring about raw materials and economic agreements with other countries.
There's nothing in the Bitcoin protocol that prevents it from being spent on guns, oil, or bribes. There's nothing in the Bitcoin protocol that prevents it from being funneled to dictators, or used to fund coups or tear down governments. The US didn't sabotage a bunch of countries after the Cold War because they had a different currency than us, it sabotaged them because they were Communist and the US didn't like the form of government they had chosen.
Of course, there would be benefits to a decentralized currency, and if Bitcoin was good at being a decentralized currency then there would be benefits to moving to Bitcoin. But even if Bitcoin was a good decentralized currency, moving to it would not magically get rid of any of the underlying motivations countries have for wielding geopolitical power in unethical ways. It's not that having more ways to move money around or make payments wouldn't probably be good for the world. But it wouldn't solve every problem, or even most problems.
Even with tariffs: a lot of the mechanisms the US uses for tariffs target shipping, currency exchanges, raw materials, and market access. If Bitcoin could help circumvent anything it would be tariffs, but in practice it's not even particularly amazing at circumventing them on a large scale. And I don't see much evidence that Bitcoin actually does get rid of motivations to prop up governments or artificially shape geopolitical environments around market access. That's not to say that the USD doesn't matter at all, just... not as much as you're characterizing. Cars don't run on Bitcoin, they run on cheap oil.
