St. Louis staff petitioned the NLRB with a formal rejection of efforts by the International Association of Machinists and Aerospace Workers (IAM) to organize their store, telling Bloomberg that they didn't believe the IAM could provide "anything complementary to Apple's culture and existing benefits.".
If the majority of the staff really believes that having an anonymous vote where that majority votes for "No, i do not want to unionize" would be the best way to prove that.
I don't really like union representatives but i am as wary of other people or committees speaking in the the name of "staff". Speak for yourself and not for me unless i actually made you my representative.