I want to add to my post above my own thoughts on this 'tax issue'.
Most people know when they are walking a fine line with 'tax dodging' or anything else. Very few of us find ourselves 'forced' into anything, but we squeal like little piggies when the **** hits the fan.
Any pilots who don't feel comfortable with Ryanair's setup aren't forced at gunpoint to join. Go try somewhere that you know won't have these difficulties. It's quite simple.
But it never is, where humans are concerned.