Tube drivers work in a very small, difficult to access industrial bubble, backed up by powerful and aggressive union, the union which has a some times during the last few decades had the sympathy and ear of government. They also do a responsible and safety critical job.
Some or all of those points could have been said about UK pilots in the period before 1980.
However, there are a lot more airline pilots employed now than 40 yr ago, and if you want to be one, there not much barrier to entry so long as you have the training money and a modicum of intellect. So maybe its not all bad news.
Both sets have existential risk from automation in the near future. I wonder which group will survive the longest?