That's what they are really after right there, setting a precedent, so they can open the door to the unions in every franchise. Between right-to-work laws and the unions killing off non-service industries, this is the only gambit unions have left to save themselves, going after minimum wage workers they couldn't be bothered with before.
Between amnesty and this kind of activism, Obama Leftists will assure that very few low-skill Americans actually work.
And that’s just the outcome they want: dependency breeds ferocious statist support.