IWW and syndicalism

I feel Ike most people don't realize how Costco workers are treated which is important context for this letter. Costco literally looks like a union job on its surface, good pay, full benefits, good time off accrual rates. Like yeah i understand what the letter is saying. They already treat their workers as good as most unions are able to negotiate, I'd feel a little upset about it too if i was in that leadership. Not because they joined a union but because they felt like they needed to. Would make me wonder if there were poor conditions i wasn't aware of.