I have never read this website before but the article is interesting. The website is allegedly a conservative one. Top 25 in fact.

An ACLU fact sheet from May 2017 claims that 21 million Americans do not have a government-issued photo ID, citing a 2006 survey from the Brennan Center for Justice. About 11 percent of the 987 voting-age American citizens surveyed said that they did not have a current, unexpired government-issued photo ID. Eleven percent of the adult citizen population in the 2000 Census amounts to 21 million Americans.
The Brennan Center survey also found that black Americans were less likely to have a current government photo ID – 25 percent lacked one, compared to 8 percent of white Americans, with an 8 percent margin of error. It also indicated that 16 percent of Hispanics lacked one, but the results were not statistically significant due to a low sample size.
Other national surveys have similarly found that millions of Americans don’t have government-issued photo ID.


https://www.conservativedailynews.com/2018/12/fact-check-do-millions-of-americans-not-have-government-photo-id/

So in summation, requiring ID to vote results in the stripping of Constitutional Rights for millions of Americans.