I always ask them whether they would have overtaken a car in the same spot but even they they don’t really get it.
Same.
A (non-scientific) study of this with friends, some of who are cyclists but the majority not, and the ‘reason’ was really scary, namely that overtaking a car in that position, if something is then coming they can’t pull back in and will have an accident.
Whereas they ‘can’ pull into a cyclist and while it might scratch the car and put them onto the pavement / into a hedge, the motorist is unlikely to get harmed as a result.
In cold light no-one I spoke to thought that was reasonable, that they’d willingly harm a cyclist before themselves but equally those that admitted they’d overtake in that situation, it must have been factored into their judgement somewhere.
Don’t know what the answer is, because it’s all being calculated subconciously at the time, but end of the day it comes down to self >>> others. And i suspect that is because they don’t see the harm that many of us that use the roads potentially come to every day, hence no idea how dangerous they are being.