> if only those who oppose showing ID would drop their objections

You're not even wrong.

I worked as a poll judge for a long time. I know a little bit about election administration.

Most every jurisdiction has required ID for a very long time. And the exceptions prove the rule. (IIRC, North Dakota?)

I also strenuously objected to closing the local polling sites in my county and state. (We activists were only able to delay it 2 years. Mostly by exposing lies of vendors and their lackeys.)

One of the (many) reasons was the long term decline of USPS, mostly caused by the decades long revanchist campaign to dismantle it, to further undermine our democracy.

Sadly, we were proven right.