Unfortunately it's many of our fellow pilots who are as much the 'enemy' as these shabby employers. For every one of us who will be a member of the union there is another who will not and will happily undercut the rest of us to 'get ahead'. I come from a strong union background in the UK - many relatives were from mining stock, and they would have a name for those that did things like this - 'scabs'. A strong term yes, but these people are the reason so many operators treat pilots with utter contempt. They need sorting out as much as the operators.