Xenon=Blender!?

Hello together! Last night a car with probably xenon light was driven behind me. The lamps were so bright – my passenger could have read a book – that I could see in the cone of my headlights (H7 lamps) the shadow of my car. Besides, the lamps have blinded me extremely over the outside mirrors (interior mirror was already “turned”. When then another 7 BMW came towards me with Xenon, the blind flight was pre-programmed! Is it only the fact that the headlights are getting more and more “armed up”, or is it also because more and more drivers have adjusted their lamps and their lamps correctly?