We astronomers are (at least in the interim) never going to influence politicians to change the lighting laws (and enforce them) by using the disappearance of the night sky as the reason.
We have to hit them in their ideology!!

Climate change is the "
Religion" of the political sphere around the world, so...........we inform them that all those power sapping lighting units are contributing to the demise of the planet.
They won't be able to have much comeback from there!!