The largest international employer stands as WalMart with 2.2 million employees (2).
Uber just a few days back announced a plan to hire 1,000,000 WOMEN drivers over the next 5 years (3)
Now posturing or not, assuming that somehow Uber pulled that off and they'll be the world's largest employer in less than a decade.
It's amazing that politicians seem so slow on the up-take here and the opportunity to address the people that are caught in the machinery of the sharing economy.
(1) https://en.wikipedia.org/wiki/List_of_trade_unions_in_the_Un...
(2) As of 2012 https://en.wikipedia.org/wiki/List_of_largest_employers
(3) http://money.cnn.com/2015/03/10/technology/uber-women-driver...