Not just aftermarket. Teslas are notorious for having overly bright, misaimed headlights.

There is no US regulation on headlight brightness, so it's a little of that and also new cars maxing out what they can put on the car. Add to that the height of trucks and SUVs.

LED lights are far brighter though, and the worst color wavelength for vision.

That actually used to be the case, but then people got used to it, and now people think regular headlights are too dim because they don't illuminate way up into the sky like a second sun, and so new cars are coming out with brighter headlights (with higher angles, presumably). But there's no technical reason LEDs have to have their terrible reputation in headlights, so the spirit of your post is correct.

No. 10 years ago you might've had a point but nowadays every new car on the road has blinding LED headlights

No way, stock leds are everywhere and they're bullshit.

LED replacement bulbs are a common problem. The beam dip is designed around a single element. However, LEDs can't produce the intense light of an incandescent or halogen type bulb. To compensate, they use an array of LEDs. This creates a large emission surface. Some of the surface is a significant distance from where the element used to be. This completely messes up the beam shaping, throwing light where it shouldn't be.

Combine poor beam forming with higher vehicles, and higher outputs, and LEDs get a very bad rep.

A properly designed LED headlight has far less issues. Unfortunately there are a lot of stock units which also have poor designs.

This is a real Mercedes-Benz as they ran in magazines, showing you can check how far along a cow's pregnancy is with their stock headlights.

They don’t teach people how to aim headlights anymore and people refuse to read the manual for the 4000 pound death machine they just purchased. So they even come from the dealership misaimed now and nobody does anything about it. We don’t even have annual inspections in my state anymore since 2002.

As with great many things, half the problem is education.

False.

I hate that this is always the excuse. People are not replacing their headlights with the frequency that would be required for how insanely common blindingly bright headlights are these days.

incorrect. stock LED headlights are blinding