"The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people."

The franchise is one of those things reserved to the people. The federal restrictions are enumerated, and those have been amended to include those who don't own land, former slaves, women, and those between the ages of 18 and 20. The states can, and have, put additional restrictions on citizens, most of which have been stricken down by the courts because the vote is a fundamental citizen's right of participation in a democracy.

Disenfranchisement has been an issue and can be again. Poll taxes were real. I won't advocate for their return as a so-called protection against fraud.

I don't have a problem with ID, philosophically. I don't understand why it can't be a voter registration card, though. That is, after all, what we receive when we register to vote.

Matter of interest: state photo IDs are not acceptable to the US Department of State as a primary proof of identity when a citizen applies for a passport, even though driver's licenses are acceptable. This is because the verification process that some states follow for a mere ID is very lax compared to a driver's license. So State has decreed that it will except none, because some are sloppy. It seems to me that, if we're going to be concerned about fraud, we need to start being concerned with state processes that are insecure on their face.

Re: the Amish and photographs: There are many synods. Some Amish are allowed to have their faces photographed. Some are allowed to drive cars. It depends on the bishops.

You can take as many pictures of an Amish back as you like. The face is the issue.