What If Your Emails Never Went to Gmail and Twitter Couldn't See Your Tweets?
I don't think this is a matter of forcing users to choose between modern technology and privacy.  Based on their current revenue models, some of the companies may cease to exist if they can't mine user data for advertising revenue.  Then again, Facebook and Twitter could charge users with an agreement that their data won't be used, and they will see no advertisements.  I wonder how many users would choose this alternative.  It is doubtful many would.  So with these  'choices', would privly just shut down companies that use this data as a basis for revenue if widely adopted?  Would this be a real positive for users?