That situation has devolved to where some (a concerning proportion of) cars have literally injuriously sight damagingly blinding light output on other road users, and thus in many cases against themselves. Their manufacturers should be fined. Regulations should enforce maximum angle and lumens output (per surface or per volume) concentration limits. Until then, more spontaneous reparations of the offensive devices will continue to have a higher likelihood and frequency of occurence (not to mention risks of injury and death by car collisions) than with basic human-health-integrity-respecting regulations as described in this here paragraph.