It sounds as though many people are using bright lights but not angling them sympathetically for other road users. Such a shame. Just like idiots who keep their full beams on and those who drive with fog lighs on!
There is a difference between something like the German approved lamps which can be very bright but are designed to be headlamps and have a shaped beam and put their light on the road and something that is basically a torch and sends light everywhere, including into the face of oncoming traffic.