Actually, even the darkest parts of west texas aren’t all that dark anymore. McDonald observatory has shadows cast by El Paso.
The problem isn’t your porch light. It is idiots who point 50,000 watts worth of halogen lights into the sky. Car dealers are the worst. Funny thing is that if you just point the light at the ground where it can do some good, the problem goes away.
It doesnt help anyone see when you shine a light in their eyes. And by the way, contrary to popular belief criminals do not have the magical ability to see in the dark. They need light the same as the rest of us, and tend to avoid the dark.
I guard my night vision.
I know what you mean about light sources. Traveling between populated areas you can spot a city for miles depending on terrain. Misuse of light should not be called pollution.