How I feel about it is beside the point. When you haze people about their union affiliation to qualify for "your" jumpseat, that's contrary to the spirit and letter of ALPA policy.
An ALPA wonk trying to make this a personal thing with me is subterfuge.
Where do you get this idea that ALPA jumpseat policy is binding on the members? The jumpseat belongs to the Captain, and he can do whatever he choose to do with it, within the confines of his FOM and the FARs. Pretty simple.