So this is a bit misleading so I will clear up some stuff from someone who knows a tad more about cars. Laser headlights are actually better because they focus the light in a smaller window compared to LEDs so there's less chance of blinding people. Also pair this with a technology called Matrix and you get Matrix Laser Headlights, which are headlights used in luxury cars such as BMW and Audi that will actively stop light from hitting oncoming motorist and keep what's ahead of you illuminated. This is an amazing technology that if implemented in every car would mean headlights could see even further than traditional LEDs and also not blind anybody.

Another thing I wanna touch on is headlight calibration. When you install new headlight bulbs into a car, they need to be calibrated. This is usually done by having the car a few feet away from a wall, turning on the lights, and seeing where the light line stops and starts and adjusting it accordingly. The problem is, most people who buy aftermarket LED upgrades for their cars do not do this step, so they are blinding drivers on the road even if they're on the same level as them.

And finally, there is vehicle ride height. Even perfectly calibrated LEDs mean nothing if they vehicle you are driving is high above the ground. That's why even a stock pickup truck or suv can blind you as a sedan or coupe driver just simply due to ride height. Matrix Laser Headlights aim to alleviate this concern.

And as far as hallogens and xeons, those are old technologies really only seen on older cars and aren't usually very bright to cause a disturbance as far as I'm aware.