But then I had to rent a newer car, and it came stock with super bright blue/white headlights. They were so bright to what I was used to I had to double check the high beams weren't on. The standard lights were as bright as my old car's high beams.
Lights in newer cars are literally just that bright, and I think it's a result of car safety culture being a matter of "I only care of the car protects me" instead of "the car should also be safe for others on the road as well"
Even when I upgraded my old car to HIDs (because I could barely see anything over the other cars), I checked over and over to make sure I was low enough. Also, I ensure I never light up the TOP crease of the trunk of any sedan behind me. If I light up anything inside another car, it's bad.
This theory can't work on its own terms. It'd be hard to make the car less safe for the driver than by automatically blinding oncoming traffic. Brighter headlights aren't a safety improvement for anyone.
They represent car manufacturers unilaterally making the product worse for the sake of having a worse product, just like the replacement of physical buttons with touchscreens.
There's probably a decent contingent of people replacing their lights with out-of-spec lights not realizing that the lights are not actually road-legal.
It's like how aftermarket brake hoses all say "off road use only" despite pretty much all of them vastly exceeding the FMVSS for brake hoses.
If you swap one side and walk around your car, you may see that they are significantly dimmer than the stock bulbs from some or all angles. Or it may work fine. Often times the aftermarket LED dual intensity tail/stop lights have barely any difference between the two brightnesses which is egregiously unsafe