They just don't work half as well as when people did it manually.
Before the pandemic, it was rare to get blinded by a person's brights. Now if I drive at night it's just non-stop, and I live in an area with street lighting. (Some of this is also due to after market LEDs and possibly lost driving manners.)
It's extra obnoxious as a pedestrian because at best they get turned off way too late, or frequently not at all.
You mean to say "automatic high beams on Teslas". The ones on our Hyundai Ioniq work just fine, and have never blinded anyone. But in Redmond, WA, Teslas are everywhere and 90% if you're getting beamed, it's a Tesla. Their headlights are, in many cases, improperly aimed out of the factory and their shit auto high beams only make it worse.
There's also the issue where most people who use them clearly think they're fine, or they would stop.
I think what you're really experiencing is default/shit calibration from factory (0/"highest it can get") + super-bright LED lights. The first 2 months I drove my M3 everyone was flashing me on the highway, and it took me a while to put that together and notice that it was me with low beams. I realized how bright the LED lights are the moment I saw the orange turn light brighten up a 5m overhead sign from 25m away, and then looked for calibration settings of the beams. Haven't been flashed since :)
On the other hand, extra-bright blue LED headlights compensated for this.