If you don't apply or show interest in these positions that offer pay and conditions that would be more suited to the unskilled labour market then the operators have to improve their game
And who then is going to stay flying a busted arse 402/Metro/PA31 etc when they can get a pay rise and ride around in a flash jet?? Your argument is probably correct if you are already in a reasonable airline, however if you are suggesting that people should stay in GA vs getting into a 777 I'd be suprised if you would turn down a Crz FO job given that option.