Re: "objections based on the inappropriate and undue influence"
It's about time that Ronald Reagan's legacy on this point dies a final death.
WHAT the hell is THAT supposed to mean? Do not forget, Ronald Reagan WAS a Union guy! (He was the president of the Screen Actor's Guild to be precise)
As far as I am concerned, if Amazon's warehouse employment conditions are SO bad that a union needs to be formed to rectify that problem, then THEY totally screwed the pooch on managing their warehouses.
Ideally you make the conditions equivalent to a union shop so that people do not bother with unions. It becomes a better place to work, enough that people do not want it to change, and you get happier employees that ideally work harder. A labor union, however, will take money from employers and employees as a kind of "middle man" so ultimately they cost more.
But if an employer wants to use the union for H.R. and training, they can make unions and management a winning combination. That depends both on the union and on the management to make that work (as it does in many places, though, so it CAN work well).
But I suspect that this new union will be more like Teamsters or one of the other "not so nice" power-grab politically motivated unions.