You seriously misread that if you think it’s about Christmas trees in anything but maybe an abstract way. It’s about wooden idols. Who tf is chiseling their Christmas trees into shapes? I thought maybe this would be about Asherah poles or something at least kind of similar but this is a pretty obvious passage about idolatry.
LEDs aren’t the problem, it’s that they’re too bright in the forward direction. It’s perfectly possible to make normal brightness LED headlights, car manufacturers just don’t do it because bright headlights look great on the lot and sell more cars