Juan, I can't speak for those who decided upon strike action in the 1970's but grew up against it. I think many are anti union today in the UK because of the hype surrounding a terrible era. HOWEVER..........
Aviation today specifically in the UK is all about cut backs apparently to compete on the global stage. So now we have a world leading British industry, aviation, that is committing suicide without union help.
To compete effectively on a global stage the workforce needs to earn whatever the lowest figure is out there is before management cease with the cutbacks.
So who is really to blame for destroying an industry?
The coal miners as I remember were fighting against pit closures because the UK was apparently not able to compete with European subsidized pits. Aviation is unable to compete with the far east or Malta with its lower cost base.
Do you play along until you can't afford to go to work or do you stand and fight?
If you go along with it you lose your job eventually, if you fight it, the unions are monsters, dinosaurs.
Who has the right answer?