Educate the Public on Light Pollution - before there is nothing left to show them
I totally understand and agree with what you are saying, but look at it from the telescope manufacturer's persepctive - do they wait for people to use effective lighting, or do they adapt to the current situation and make money now rather than years later, meaning never and bye-bye business?
In the meantime, awareness has to be made to the general public.
If they don't care about the lack of stars in their sky, then go with the disrupting birds and baby turtles angle.