A point - for lower headlight mounting, the angle is never such that it illuminates drivers ahead of the vehicle... Angles or whatever, another Prius never has its headlights at or above my line of sight.
OTOH, Many pickup trucks, and apparently (based on direct observation), lifted or not, the headlights are already at or above the drivers' line of sight... They will indeed shine directly into my rearview mirror, causing me significant glare and posing a safety risk. This is whether the mirror is dimmed or not - they are too bright for that.
Further, as was repeated last night, oncoming pickup trucks lifted or not, pose the same threat, only directly into my eyes.
And some trucks do not apparently have headlights that are compliant, for they cause such overwhelming glare even further away, and more than 3 lanes to the left in oncoming lanes. Some trucks, and this is not uncommon here in Arizona, have the standard headlights, clear white foglights/daytime running lights, and high beams, all on at the same time. Glare x2, the DRL glare being significant despite being lower on the frame. Lifted enough the DRL are actually at or above regular low beam height.
Despite the geometry lesson, both the apparently noncompliant lamps and actual height above the road lead to this glare, and it's dangerous. And it will not be addressed, the NHTSA is nonresponsive to such complaints until there is a threshold of deaths reported.