If they vote away Net Neutrality, in theory the biggest sites on the internet could easily bring it back:

"Sorry, you can only reach this site with a certified internet connection, please contact your service provider and request full internet access."

Seems, if Facebook, Netflix, and Google did this, it would be enough to force internet providers to open up the connection.

Although getting rid of net Neutrality is a win for Facebook, since people would just buy a Facebook package, and be even more walled into that garden.