They PRC is betting that they can bully Taiwan into accepting the PRC’s dominion.
They have isolated Taiwan - most countries won’t even admit that Taiwan is a country.
Also, their most potent potential ally (us) has just been humiliated and is at low ebb in its military power thanks peacetime idiocy.
If they can convince Taiwan that they are truly alone and lack the strength to stop an invasion by the PLA, they they might knuckle under.
That has been the plan. The question is will the ripe plum fall into their lap o will they have to climb to get it.