Unions sound nice in theory. But in practice, pilot unions work only for very senior pilots [1]. All other pilots in the union get paid much less and have worse working conditions. The detailed story about the effects of pilot unions:
[1]: Senior vs junior pilots gap is also the incentive for the airline owner to go bancrupt and start a new airline. So that there'll no senior pilots in the airline.
"The answer is to look at who controls the pilot's union: very senior pilots. The airline management is mostly interested in what percentage of its revenues are paid out to pilots; the distribution of the money among the pilots does not affect profitability. The very senior pilots on the other side of the table say "We need the most senior pilots to get $300,000 in pay and benefits." The airline's response is "The only way that could work is if we pay the new pilots $16,000 per year." The group of senior pilots responds "We can live with that."
Note that being classified as "junior" or "senior" has nothing to do with flying skills or experience. If Captain Sully were to start work today at a regional airline, he would earn between $16,000 and $20,000 per year, depending on the carrier, and fly as first officer. He was "senior" at US Airways, but is "junior" at the new carrier."
Company Propaganda writers unionize. Do no longer produce lengthy treaties about how unions destroy companys and are bad for workers, in a infinite race to the bottom against your fellow sellouts. Do no longer pay for the paint needed to hide the facts that lots of other country (VW- Germany for example) have unions who run cooperations together with shareholders. Raise your flag, and together future flags may not be raised, for cheap!
Unions are run by senior pilots; it's very much in their interests for pay to continue to be weighted towards senior pilots (and they could trot out plenty of justifications related to experience and training for it if they wanted to)
Junior pilots aim to become senior pilots when they've accumulated enough experience so it's generally not in their interest to rock the boat
