For over 50 years DOH was the standard ALPA position. With provisions and protections for different types of flying, ie wide body international etc.
It was good enough for PI/US and for PSA/US and for Allegheny Mowhak etc etc etc. It was the standard until the junior United pilots got it changed because they were afraid of a merge with US.
IF you take this to it's ridiculous conclusion when this company merges with Virgin, or Skybus or Spirit then all those pilots, some with less than one year seniority, hired as captains off the street, will be senior to most West pilots. Your service time will count for nothing.
You will see more mergers, and you may not like what you get, praticularly as you grow older and spend more time in this industry. Your prior service time has no meaning. If the company merges with some upstart you will get hosed.
A great way to build ALPA unity.