I am glad to see the restriction of ABX pilots has been terminated. The j/s is not the place to determine the validity of arguments and positons, regardless of mutual or dissenting opinions. Most already know the best approach is to enjoy the view of someone else's office and be thankful for the ride.
l8fr8 has the option to deny access to anyone period end. You know the saying....'hate the game, not the player'. I don't think Bo would deny someone unless they had personally harmed him (or others in their group) wrongfully. That would be an individual issue and not a wholesale offering of the group. Regardless it's his choice and bumping just increases the space between groups.
If you have a problem with access at *any* airline, you should bring the situation up to the rep's at your Union. Let them handle it internally with the opposing union representative.