There are simply too many candidates and not enough roles to fill and certainly not enough money for research. This is great for the universities but it's awful for grad students and assorted post-grads/docs/whatever. Now you have a bunch of assistant professorships and adjunct spots where you get paid like shit and you have no chance of tenure.

There is nothing an employer likes more than a pool of candidates willing to debase themselves for every morsel and crumb.