Peaceful reunification with Taiwan under CCP rule is already impossible. Neither side of Taiwanese politics would accept that: the big political divide in Taiwan is between people who consider themselves Taiwanese and support independence (pan-Green), and people who consider themselves Chinese but think the CCP are illegitimate rulers (pan-Blue).
Maybe this analogy is a bit of a stretch, but imagine the pan-Blue as ethnic Cubans in Florida, who despite feeling more Cuban than "Floridian" would never peacefully agree to Miami being reunited with Cuba under Castro regime rule.
The only way China and Taiwan could be reunited peacefully is if the CCP falls, the mainland becomes a capitalist liberal democracy acceptable, the pan-Blue coalition somehow becomes politically dominant in Taiwan despite being in opposition now, and they negotiate an agreement with the new Chinese regime. This is maybe not totally impossible, but still far-fetched.
I expect the CCP understands all of this. Since peaceful reunification with Taiwan is already impossible without the CCP going under anyway, it's not a good reason not to interfere with Hong Kong.
Maybe this analogy is a bit of a stretch, but imagine the pan-Blue as ethnic Cubans in Florida, who despite feeling more Cuban than "Floridian" would never peacefully agree to Miami being reunited with Cuba under Castro regime rule.
The only way China and Taiwan could be reunited peacefully is if the CCP falls, the mainland becomes a capitalist liberal democracy acceptable, the pan-Blue coalition somehow becomes politically dominant in Taiwan despite being in opposition now, and they negotiate an agreement with the new Chinese regime. This is maybe not totally impossible, but still far-fetched.
I expect the CCP understands all of this. Since peaceful reunification with Taiwan is already impossible without the CCP going under anyway, it's not a good reason not to interfere with Hong Kong.