Here we go. In Ryan the training is as good as.. the pilots are as profesional as... bla bla bla.
Simple fact: Ryan offers the lowest form of Jet employment in Western Europe. Most experienced pilots would not touch them with a bargepole. Those that can will go to a better employer. Those that cannot are stuck with Ryan. Therefore Ryan must be manned (mostly) by the desperate and those not wanted by other airlines.
There are ofcourse exceptions to this due to basing and other personal factors but I am sure it holds as a rule for the pilot population as a whole.
Standing by for mortally offended defenders of Ryanair, that wholesome and principled employer.