> continue to earn USD for oil?

Iraq started taking Euros for oil. Shortly after that, they were invaded. Venezuela started selling oil for Yuan. Shortly after that, their president was kidnapped by American troops. Iran is selling oil in Yuan. Shortly after that, American bombs started falling on them.

There is a very strong incentive for oil producing nations to only accept USD.

Do American people ever wonder "are we the baddies"? If this is an accurate description, I think everyone would agree that this is a bully behaviour. And arguably evil and opposite to the "free market" it champions officially.

In fact, is China or Russia involved in similar planet-scale military enforcement?

While the facts are not wrong, they are not compelling as a description of things that were building for years before the currency changes. Iraq/Venezuela were both collecting US ire for decades before the currency attempts. (Not supporting US actions on either - but currency was not a factor in what happened)