CA (https://www.youtube.com/watch?v=mpbeOCKZFfQ) tricked people into giving up their data and used it to spread targeted propaganda.
How is this the same?
Was Obama 2012 restricted to collecting information of its downloaders? Or did it collect all of the downloaders' friends' information as well? Facebook certainly allowed for this (until 2014, that is).
But the point is, the methods CA used to influence voters weren't significantly different from Obama's 2012 campaign.