I mean this is a country in which the question of Voter ID can be very controversial.
In Germany every adult has to have an ID card. You cannot not have one. As a consequence requiring one for voting is practically unproblematic.
In the US the situation is fundamentally different plus there is a history of heinous racial targeted disenfranchisement of voters to consider that is in the extremely recent past and alive and well.
It's like seething over criminal justice system (police, court, prisons), what if govt turns authoritarian? Criminal justice system will become a tool of oppression.
Sure criminal justice system can be and have been a tool of oppression, but no sane society would forgo criminal justice under this fear.