Adopting these techniques to mine information about voters is an invasion of privacy from a candidate who pretends to be concerned about such things.
Just because something is being done doesn't mean it should be done. Our some old bought and paid for members of Congress have allowed the data miners to get this far, but if the people were ever listened to, they'd prefer that these practices being restricted or even banned.
It will never happen unless we go completely totalitarian.
You don’t seem to understand what an “invasion of privacy” is. At which point did Cruz break into citizens’ homes and steal their info? Give me an example of when he obtained someone’s private information illegally.
Adopting these techniques to mine information about voters is an invasion of privacy from a candidate who pretends to be concerned about such things.