Absolutely no war going to happen between Hong Kong and Mainland China, and yes Hong Kong is no doubt part of China but the people who live in Hong kong do not like mainland China because for them people from China/mainlanders are rude, ill-mannered, poorly-educated, and dirty, While on the other hand some mainlanders view Hong Kongers as arrogant. And whatever the outcome hopefully it could lead bitcoin to top, so that everybody can enjoy the benefit.

Credit:
https://en.m.wikipedia.org/wiki/Hong_Kong%E2%80%93Mainland_China_conflict