There is a way to do it, a way to do it securely and one which protects privacy. You don't need a SSN to vote at the polls, all you need is a name and address. Online you can set up a hard stop if the name and SSN do not match, or any number of factors. I do believe the democrats will complain that it further disenfranchises voters if they don't have access (phone, computer, etc.). I do believe their whole issue of a picture ID for voting (and requiring it to be burdensome) is a false flag, though.
I actually have an entire system including security, accountability, the process to obfuscate who voted for what, etc. on paper. To get to the point where it can be sold to a state for their process would take about $1.3M I haven't been able to find the funding yet, but I may try the GoFundMe thing to do it. Secure mobile voting is doable in a way that is secure and which would completely eliminate voter fraud issues.