Mach E Avelli, your posts about the subject always come across as those of someone very near the top of their list in a very assured company like BA or similar. In other words, someone who has been very fortunate all the way from the early days of their career to make good progress in a very good environment who has never had to face redundancy or needed to escape a bad employer while supporting more than just themself. Good for you on that score, but maybe you should show a little less selfishness towards those who have not had such fortune.
Seniority lists are a bad thing as they reduce terms and conditions for all, including in the companies with the lists. They trap workforces so that the companies can reduce pay, leave and other perks without the fear of an exodus of staff. Get rid of the lists industry wide and we would see quick and significant pay rises across the board as the airlines attempt to hold onto their staff, especially the worse ones. Every pilot would win, except those at the top of the lists who might have to share some of the less pleasant routes or no get first choice of leave every time.