This mainstream American support for Hong Kong is framed in a capitalist vs. communism template, but that truth is often couched in prettier language.

Don't use the words democracy and freedom if what you are really protecting is the free market in Hong Kong

Where is freedom and democracy against totalitarian regimes we backed so many other places in the world?

The US was certainly not for democracy and freedom when it came to Thomas Sankara as one example. He was killed 32 years ago today.
https://thewalrus.ca/thomas-sankara-tried-to-liberate-his-country-from-the-west-then-he-was-murdered/