The US Revolution was justified as being in protest against taxes, but taxes raised to pay for the Seven Years War which (chronologically, if not causally) began with George Washington ambushing French troops and resulted in colonists gaining significant territory. One of the nowadays less romanticised causes of the revolution itself was the block on westward expansion of the colonies by the British government too, incidentally.
Your outline there also ignores the many wars and atrocities that describe the westward expansion of the USA (and beyond, the Philippines for example) as it actually did happen too, they very much did not begin their imperialism with the start of the cold war.
Well, that and due to them being investigated for how they handle children's data and access, it had appeared that a fine was heading their way.