@PlanDeRaccordement
Most of the things you mention do not require ID.
You do not need to get voters to bring ID in order to check that votes aren't altered by the staff etc etc.
The only thing that, of course, ID would avoid is impersonating someone else.
However, your whole argument seems to be that you have no clue whatsoever on what scale this is happening, for all you know it could be tiny and irrelevant, but you want ID just on the off chance that fraud might in fact be rife.
I am curious, how do you propose to avoid voter suppression?
Are you in favour of the American proposals, which, amongst other things, make it illegal to give food and water to those queueing to vote (it's been proposed in Georgia, look it up)?
Or would you be in favour of a system of ID cards which are free for the end user, like in France?
Do you admit that the Americans have been engaging in voter suppression for a very long time, with the excuse of reducing fraud?
You are right that ID cards would reduce fraud ( where we differ is that I wouldn't want to use a nuclear bomb to kill a mosquito). However, how do you balance reducing fraud vs voter suppression / making people feel disenfranchised / losing confidence in the system etc?
If (I'm making the numbers up) you prevent 1,000 cases of fraud, but you end up preventing tens of thousands of people from voting, is that not a much worse outcome?