How can you be so sure that every progressive at Google opposes this? Speaking only for myself, I support their unionization bid.
It's funny how everybody covets more power and more money, employers and employees alike, and always want to wrap it all up in a facade of being the moral choice.
Unions are as much about fairness as "more money". People genuinely want better work conditions, better hours, and better benefits just as much as "more money".
They really only care about the social aspect so they can use it as PR. LGBT & the rainbow flag sell really well. The second anything challenges capital, all gloves are off.