Taiwan and HK relationship is far far longer and deeper than to mainland the communist (who did isolationism and refusing to accept the heritage of Chinese civilization over communism).
Taiwan and HK was the only cultural center of Chinese worldwide (while mainland was very busy prosecuting Confucianism and anything related to Chinese culture).
Taiwan and HK is like two countries without border. We were the only Chinese states left in this world.
Taiwan is always there for HK.
PS: I do believe most of mainlanders here don't know about it, but all Chinese worldwide know it very very well.
Communism is a white worshiping ideology as well.
Remember Cultural Revolution!
We did make some mistake in the past , Such as Pi-Lin Pi-Kong.
During that time , some old buildings/books were damaged and some aspects of Confucianism were criticized.
That is political campaign. No one try to deny that !! Our fault is enlarge this campaign too much , but not starting the campaign.
The Core of our China culture is the spirit of constantly strive to become stronger, not the old building or books or one single theory like Confucianism
We China heritage the spirit very well , that is why we still keep stand after suffering so much, you guys will never understand that !
We china people always give our worship to our great leader "Mao Zedong", not communism , you keep that in your mind.
About communism in china , in the history of human , we did not only have national fusion but also the culture and knowledge.
If the communism can help china , we study and use it !
During the Qing dynasty , we seclude the country from the outside world , we still suffer the evil consequence until now
We will never make the same mistake!
You keep that in mind also.