When you’re in the middle of overtaking another car and somebody comes behind you too close and blinds you with their lights, THE most dangerous thing you could possibly do is rush the overtake and pull-over, because your ability to check the position of the car you’re overtaking using your side mirrors is compromised (either because you’re blinded by the lights behind you or might get blinded at a crutial moment if the car behind you flashes their highbeams at the wrong time) so changing lanes in that situation is the very opposite of what you should be doing.

Getting close to the tail of somebody on the highway and flashing high beams trying to pressure that person to move out of the lane is incredibly selfish thing to do because it activelly pushes the other person to endanger themselves, their passengers and even those on the other lane, and to add insult to injury that method of “pressure” requires breaking 2 traffic rules - safe distance from the car ahead and the use of high beams when it might blind another driver. Even in a situation were you’re blinded because the lights of the vehicle behind are too high, they’re still committing at least one traffic infraction: either they have not adjusted the aim of their lights to the legally mandated distance or they’re not maintaining a safe distance from you.

Further, slowing down and only changing lanes when you feel it’s safe to do so are exactly how as per the traffic rules you should deal with lower visibiility conditions.

I can understand the impulse to get out of the way, but you’re actually endangering yourself and others if you do so when your visibility is compromised.

Absolutelly, you’re overtaking slowly and you notice far behind a car fast approaching you and it’s the nice thing to do to go a bit faster and finish the overtake. However if they are excessivelly close and start imparing your visibility with their lights, safety comes first and that actually means slowing down and pulling over only when its again safe to do so.