It's clear that our failure to respond to the extraterrestrials shorter burst of gamma rays have led them to try to get our attention with much bigger and more powerful technology.
Will someone please answer that phone?!
And they are complete and helpless victims of "open spying by satellites", with no spy satellites of their own.
When China finally reaches the modern era and actually lets its people have free access to information, such ignorant posts as yours might become less common. Well, no, this is Slashdot.
Then they conducted a reckless ASAT test at relatively high LEO altitudes and nearly doubled the number of trackable debris at that altitude [see Johnson Space Center's Orbital Debris Quarterly Newsletter for the chart]. At that altitude, the pieces of their defunct weather satellite will remain a hazard for many decades. That got them uninvited.
China needs to decide whether the PLA is running the show or not, and decide whether they want to be a responsible space-faring nation... or not.
It's all a matter of perspective.
A pending reversal of the Earth's magnetic dipole may somewhat increase atmospheric scouring, but you must remember that only the dipole moment is going to reverse direction. The higher order (e.g. quadrupole) moments won't go anywhere and will still deflect the solar wind. You'll just get aurora in unusual places for a while.
The idea has been tried before (big surprise). The Russians used to deliberately blow up their satellites or rocket bodies, and in doing so produced an enormous amount of debris. They eventually saw that this wasn't the best idea.