Google workers: time for fire in a barrel?

Reading about the worldwide protest by Google employees by the misbehaviour of their bosses, I couldn't help thinking:  It's dramatic and colourful to whip up some Twitter protest in which staffers make a well publicized event for an hour or so. 

But to really produce change in their workplaces, surely the serious way to organize is to Organize.  Google with a union (or Tesla, or name your new behemoth) would be something new (and old) in the world.  And you know, might actually lead to actually changes in working conditions, as opposes to a Twitter protest with a lot of likes.  I know everything is ranged against that, but these are smart ambitious, conscious people, and they already have one style of organization down.