however I do believe the current system of say being a Captain or F/O at one airline and not being able to move to a company that is more suitable (money, lifestyle/roster, location, quick command, family matters or whatever) and not be able to retain your current rank is outdated and being used against us
Be careful here. It sounds like a good idea until you bring human nature into it... Those who have chosen aviation as their career range from the guys working for nothing (or even paying for experience) in small outfits to senior trainers/management in legacy carriers. Do not underestimate the temptation to undercut those in better jobs to gain a personal improvement in lifestyle, even though it is to the detriment of others.