Why does this happen and the
ChiCom communists are not on Interpol criminal lists and intercepted when they leave their corrupt country?

Mad Mao did this all the time.
there is now a split in the CCP with chairman x and his loyalists on one side and the party elders, the red princelings and the military on the other side.
Xi sacked and maybe killed the last two remaining senior members of the People’s Liberation Army. Both men were well respected.
Now there is no one to command the military. All of the people Chairman Xi selected for the military leadership were ousted in the last year.
No one has stood up to applaud Xi for his action. Applause is a signal of loyalty. But that has not happened.
People are afraid to support Xi because doing so has consistently meant that supporters would eventually come to a bad end.
As far as the USA is concerned, all this means is that the Chinese no longer have the means or will to take Taiwan—not with their entire military leadership wiped out.
Hong Kong was supposed to be free under Chinese administration for 50 years. It took only about 20 years for Hong Kong to loose any resemblance of freedom.