All the talk against P2F is just pissing into the wind.
So long as you have:
1. More pilots than planes.
2. Pilots with rich parents or access to credit.
You will always have P2F.
Only way to stop it would be to:
1. Severely regulate and limit the supply of new pilots (not gonna happen).
2. Have some kind of world pilots association that regulates all pilot employment (dream'n).
And P.S., until Joe Airline pilot can sign my Passport Application, pilots are not, and will never be, technically "professionals".
Highly skilled labor would be a more accurate term.