According to both the US government and the authorities on Taiwan, Taiwan is a part of China.

The illegitimate regime in Taipei by its own constitution still claims itself to be the legitimate government of all of China. No one recognizes Taiwan as an independent state.

The US officially recognizes the One China Policy. This is the fundamental basis for any diplomatic relations with China. There is no "Taiwan embassy" in the US. The US constantly affirms to China that it does not support "Taiwan independence".

(Also, it doesn't matter what the US thinks about this anyway, the only opinion that matters is that of the Chinese people, including but not limited to the people in China's province of Taiwan)

There is nothing complicated about this. The Taiwan issue is an internal matter for China to resolve. Outside forces have no right to interfere.

Also, i like how you backed off from your claim that Hong Kong is an independent country. Do you admit your ignorance on this issue or are you just trying to sweep an embarrassing mistake under the rug?