Seems like they're grifting onto whatever entity helps them maintain their independence from China. They will cut and run towards the Democrats if they show a hint of being 'tough on China.'
But consider this:
https://responsiblestatecraft.org/20...7_Un_53a3Agjec
Read into it what you want, but what I see is simply a move by the outgoing Republicans to do something on the edge of silly, so that when the Democrats inevitably roll it back they look weak, thus allowing the Republicans to score political points.
Nobody in their right mind would properly go toe-to-toe with China. It's military and economic suicide. And the moves by the Republicans are simply moving chess pieces around to suit their own ends.
It just makes the activities of the HK protesters look all the more foolish.