I don't think there's an idiot out there who would admit to taking a job to sink another carrier, especially if he or she is asking a captain for a ride on their jumpseat, but maybe you would, I don't know.
A pilot should plan to live at domicile, huh? May I ask if you have always lived at your domicile. What about those who you fly with? Do you deny the jumpseat to other pilots who commute to a place that has a high cost of living, like, say, New York, LA, San Fran? It stinks what happened to Aloha, but where was your support for them when go! went into business there? I don't remember seeing ALPA picketing or crying out injustice while they were out there.
I think the company management does have a say as to who rides on their jumpseat too. Don't turn this into a union war, Aloha and Mesa Air Group pilots are both card carrying ALPA members. You don't like what Mesa did, neither do I, but I'm not going to punish a pilot for what his management.