I'm always confused how I can apply for a mortgage / loan (aka a legally binding financial contract) online with just some details like my name + social security number, but this method of identification seems to not be acceptable when discussing voting?
Consumers lost more than 16B to fraud in 2016:
https://www.cnbc.com/2017/02/01/consumers-lost-more-than-16b...
The Equifax breach lost data of 145 million Americans.
https://en.wikipedia.org/wiki/Equifax#May%E2%80%93July_2017_...
Passwords are still the norm for online authentication, despite providing terrible user-hostile security. The US social security number is used both as an identifier, and as a static never-changing password.
Your smartphone knows what photos you send to who.
People put their voting preferences on their lawn + bumper sticker in America. I never knew voting was secretive?