"Data from global multi-asset investment platform eToro shows retail investors are opening more gold and bitcoin positions on news announcements of an escalating US/China trade war. Investors typically pile into gold as a natural hedge against macro economic unrest and data shows a correlation between the number of gold and bitcoin positions on its platform. This could suggest more retail investors are starting to view bitcoin as a store of value." - The London Economic
There are theories, with decent proof that says that the US is behind the China VS Hong Kong war, but it is dodgy and we'll likely never know the truth.
Looking at the price trends, we know this doesn't affect price that much at all - BTC has been fairly stable these past days and I wouldn't say the trade war has an affect on price.