Yes, it is indeed unrealistic to say there is not voter fraud of any kind.  However, you do realize it is negligible and often times due to clerical error.  Both parties have people who have voted illegally.  The bigger problem is voter suppression which just by asking for all of the personal information this voter "commission" has caused.  They are put in place to keep eligible voters from voting through unfounded fear and road blocks. The only way voter suppression laws are enacted is if they do it in the guise of voter fraud.  I think you know that though. 

Comprehensive voter fraud study done by non-partisan voter fraud.
https://www.brennancenter.org/publication/truth-about-voter-fraud