And United States has historically been part of the United Kingdom. Does that mean if the UK redrew maps to show that the US was their territory it wouldn’t be imperialism? Imperialism is the expansion of the territory or influence of a state especially through the use of violence. The CCP wishes to extend its influence into Taiwan and they are willing to use military force to do so. That’s why they’re so mad about Taiwan being provided with the means to defend themselves. It would make a military invasion more difficult and costly.

why does "historically been part of" matter, do you want all former colonial terrirories returned to their original empires?