1500h requirement in Europe would be practically impossible to achieve, as the GA market is nowhere large enough to sustain this. FAA 1500h rule applies to turboprop airliners (ATR, Dash 8, ...) as well, but even if we would forego this requirement, the number of turboprops in operation have been reducing in the past years and I don't see them coming back with large part of short-distance regional travel being replaced with high-speed train where this is feasible.
I bet there would also be an enormous push from nearly all airlines in Europe against this, particularly the ones that prefer to hire only tabular rasa pilots - when was the last time e.g. Lufthansa mainline hired anybody who didn't go thorugh their ab-initio flight training school?
100% union subscription sounds great, but you can't make it mandatory, according to current labour laws around Europe, as people are free to join a union... or not.