HID headlights, auxilary headlights, and daytime running lights make driving much more difficult and hazardous. For senior citizens with cataracts, glaucoma, and astigmatism, all the bad light makes it extremely difficult to see at night. It is an economic waste which you have to indirectly pay for through increased taxes and increased product purchase prices. It wastes valuable energy resources which can be put to better use in the future. It contributes to global warming, acid rain and other pollutants.
Dams alter the geography and displace people and wildlife.
Lights only advertise that you have something worth stealing, where the dog is, and where the obstacles are. They took away your privacy and enjoyment, and you want it back or to be compensated for the loss. Birds no longer nest in your yard because of light trespass. Astronomy clubs sponsor telescope observing sessions which are free to the public. Viewers are inspired by the wonders of the night sky.