All my experience shopping at grocery chains in the US and elsewhere has impressed upon me that these workers represent the absolute classic, textbook case for unionization. Yes, including Whole Paycheck[0] as well as Trader Joe's and Safeway and Von's and everybody else. While I can imagine Amazon having a loathing of unions, if they really want to be in this space they will sooner or later have to contend with the…
It sometimes surprises people that, as a Libertarian, I applaud workers attempts to unionize. It's really the only way for those who just want to put in an honest days work to combat continually living under a cloud of worry their job/benefits will not be taken from them and given to those with equal skills but who are more desperate to survive.
In a truly free market, individual workers should be allowed and, in some cases, encouraged to organized.