The way I see it, P2f or not, you need luck(a lot of it) or connections.
I know of several guys that graduated flight school, and are hired by their national career. Others that paid for 500 hours P2F, and joined Qatar airways as fast track second officers, and many others that have been unemployed for a very long time.
Even with p2f programs, you could end up at home.
500 hours make you eligible for VERY few airlines out there.
Connections are what will be helpful.
I have seen with my own eyes, guys that are very knowledgable, passionate, and that would make extremely good pilots, sitting at home, whilst others that have had everything easy, and dont give any interest, or put bare minimum effort, these guys are 320 first officers.
It is what it is.
This is and has been the case for a long time now.
Aviation is a very cruel, unfair, and unforgiving industry.