This isn't the thread for a long debate about this, but you can't compare airline training to selling a car. Airlines are offering a job, not a service. It is their responsibility to take a certain level of risk, just like every other industry.
Oh, but you can! A car and a training course are both products for sale. They both need buyers and they both need buyers with cash. Neither are interested in subsidizing you or guaranteeing any loan you might need to avail yourself of. That is your problem.
It isn't "their responsibility" to take on any level of risk. It is either a choice or a necessity to take on risk. Where risk is not a necessity, they will normally choose to avoid it unless the returns make the risk a worthwhile choice. In this case, and putting it bluntly, it is a case of here is an opportunity. You want to be an airline pilot, then put your money where your mouth is. If you don't want to, or can't, that is fine.........next!
There was a time when airlines footed the bill for everything connected with recruitment. Those times have long gone. The demise was in part driven by the simple economic doctrines of new world "lo-co" carriers. However it was also driven by the losses incurred by applicants that signed up, took the product, and then sold it to somebody else at the first opportunity. By way of example (and in the lifetime of this website) when airlines sought to "bond" applicants for their training costs, there was an absolute outcry on these forums about the abhorrence of such practices. Barely a week went by when somebody wasn't seeking advice for jumping their bond without penalty to themselves. Given the legal costs of recovery, the natural evolution for the airlines was to simply shift the burden. You want training that puts you in a position to do this job, then you pay for it. You want to leave and sell that training to somebody else?...... Fine you paid for it, do what you feel you have to.
Now you are left with maybe one
ab-initio programme in the UK that (in certain circumstances) might be able to offer a financial guarantee for the loan necessary for that programme. That programme is extremely selective and competitive and if providing those guarantees proves costly it is just as likely to evaporate eventually.
So whether you choose to "waste your breath" or not, the reality is glaringly obvious and it isn't going to change anytime soon.