ALPA national will do everything they can to prevent this from happening. Those fat cats could give a crap about you or me, but they will use every dirty trick they know or can invent to keep themselves in a position of power and self-perceived influence.
I don't think ALPA members will be willing, in this dark age of commercial aviation, to give 2% to ALPA, in addition to the substantial monies required to fund a new union.
It is a great idea, as ALPA national has grown fat, lazy, and complacent. Hopefully this USAPA thing will jar them into realizing how bloated and out of touch they have become. If they care.
It wouldn't be a stretch for NWA or DAL pilots to ditch ALPA if things don't pan out with the SLI...and who can blame them?