And still no answer. Your Wiki even explains the disadvantage for craft unions. AMFA does not even intend to organize all mechanics. Think about it? Why does AMFA only appear at times of turmoil? They show up during bankruptcy, or during negotiations, or other contract disputes. AMFA preys on the fear of the unknown. The weak minded could be you.
AMFA will never take hold at TULE, we've been down that road.