A letter to HR
 

Excellent letter hope it finds it's way to the top.

CC to the chief pilot, CEO, and others that have real power.

Bravo... but (and I'm sure you know this) you nuked not only that bridge but possibly many others in the regional industry. You are now probably on some "Regional Pilot pay/union rabblerouser" list that gets passed about by the Regionals. Hopefully, this doesn't bother you! ;)