Who cares if TB-2 is controlled by the West or Ukraine? If you are China, you need to cut off that communication regardless of who you are dealing with.
This is a major question actually because the best response to medium UAV is to strike their command center and shut a whole bunch off at once.
The reason is technical:
Typically these command centers are major RF emitters - they need a 2 way datalink that is high resolution enough to encode real time high resolution video and radar signals. As you understand, real time video and radar data is a major bandwidth hog. It is difficult to produce RF energy, they need a ton of electricity. The command centers are unlikely to be moving much because of that.
Otherwise, other was of shutting them down are not so good. they have less takeoff constraints than manned fixed-wing in terms of ammunition (some can even be loaded by hand) and runways (take off from roads and fueled by gasoline) which makes them difficult to shut down by hitting airbases. They don't cost that much (TB2 costs only $1 million) so your CAP time is even more worth it.
Russia likely already struck known command centers with anti-rad missiles. But the drones are still operational. One guess is that they escaped the eyes of Russian tactical aviation. Didn't happen in Syria though. So the more likely explanation is that they're being piloted by commands from the known E-8s circling in Poland, Romania and Hungary.
Evidence for my theory: most TB-2 strikes are in the west and north. None were in the East where the Ukrainian Army is getting encircled and eliminated with artillery.
Why is this important? Because apparently, it seems Russia is unable to jam the datalink. This means that if you're unable to jam the datalink, destroying enemy ground stations is insufficient to eliminate the UAV threat. They can still be controlled by foreign planes outside the zone of conflict that you can't shoot down without escalation.
TW is a bit different. TW is surrounded by international water. So yes, E-8s can circle east of TW in international waters puppeteering Taiwanese UAVs that survive. PLAAF can also send J-16s at them and they can figure out if they want to play the game of chicken.