I will begin.
I think this is an important issue to raise. The voter can be identified in ways other than through the video. If we just want to make sure that the correct person voted, a biometric identification through the device can be done at the time of the vote. Presumably, you all have in your pocket a telephone that knows how to do that. It knows how to recognize your face, your fingerprint or something like that. That can be done locally, and it is related to your identity.
Your actual identity is not sent to the server. For example, we can easily imagine a very simple application that, at the time of the vote, would ask you to select yes or no and to confirm your identity by putting your finger on the telephone or by looking at it. That makes it possible to link your identity to your vote without having to send a video in real time.