It really is none of my business, but as a retired airline pilot of some 50 years standing I have to say that I was at one time a member of BALPA, the TGWU and the very famous International Brotherhood of the Teamsters.
None of them did me any good when times were hard (they had bigger agendas).
The most useless of the bunch was BALPA.
The trouble with the likes of grimmy is that they have not been around aviation long enough to have an opinion.