Ok here is some reasonable disagreement
Voter impersonation is a very rare type of fraud [0] and ID laws tend to make it hard for some but not all voters to vote [1] meaning they don't prevent fraud, they just prevent democrat votes.
0. https://www.washingtonpost.com/news/wonk/wp/2014/08/06/a-com... 1. http://fivethirtyeight.blogs.nytimes.com/2012/07/15/measurin...