> verified with registration cards and authorized with their mobile device biometrics
What does "verified" even mean here? At the end of the day, you need to convert it to some cryptographic key, and then that key is vulnerable to attack: either it's kept in the voting machine, in which case the machines themselves are a single point of failure, or else it's given to voters, in which case their insecure phones, computers, etc are easily compromised to get the keys.
Checking your votes doesn't help: a significant number of people do not vote. An attacker can submit votes on behalf of those people using their keys and noone will know, and even if you find someone who claimed that they didn't vote, how would you ever prove it either way?
The advantage of a physical system is that there is no single point of failure: changing the overall election result requires a physical presence at multiple polling locations. All electronic voting solutions are intrinsically worse in that respect.
What does "verified" even mean here? At the end of the day, you need to convert it to some cryptographic key, and then that key is vulnerable to attack: either it's kept in the voting machine, in which case the machines themselves are a single point of failure, or else it's given to voters, in which case their insecure phones, computers, etc are easily compromised to get the keys.
Checking your votes doesn't help: a significant number of people do not vote. An attacker can submit votes on behalf of those people using their keys and noone will know, and even if you find someone who claimed that they didn't vote, how would you ever prove it either way?
The advantage of a physical system is that there is no single point of failure: changing the overall election result requires a physical presence at multiple polling locations. All electronic voting solutions are intrinsically worse in that respect.