I disagree, absolutely nothing wrong with standard lights,my wife and i are constantly being dazzled by led's. Maybe you old gits should get your eye's tested!!!
What you are dazzled by are most likely HID headlamps, any lamp that dazzles will not pass MOT beam test these days ( some people know this and remove aftermarket LED and HID gear ), except if the dazzling lights are on a German car.
No it is not the direction of the beam - it is the colour of the LED light (which is equivalent to daylight) which is the problem.
You don't get flashed but you do get cursed. Other people not flashing you does not mean they are OK.
They are good for you but not for others.
You may see better - others suffer a form of night blindness, not dazzle, even in daylight with DLR lights.