Totally dark tinted car windows are scary. I see lots of them everyday on cars in trendy Los Angeles. On all kinds of cars, especially the newer, trendier models. When the windows are too darkly tinted you can't see the driver. When a too-dark-tinted car is near you it's impossible to tell if the driver is armed, unarmed, angry, smiling at you, drunk or high or insane. Or texting while driving.
Yes, states have laws determining how dark a vehicle window may be tinted but it appears that, either the maximum allowed is too dark, or many owners are breaking the law.
It goes against human nature to not be able to see if someone nearby may be a friend or a threat to your safety. The too-dark-tinted vehicle windows issue should be addressed and made more "normal"...and safer. In every state.