If they did it would still be seen as a Democratic-leaning message.
Real question, I'm in Australia and don't know.
Republicans also regularly impose laws to disenfranchise voters. An example is Georgia's law where voters are purged from the rolls every 3 years. Minority voters often only vote every 4 years.
The list goes on and on. These voter suppression tactics are very, very targeted at minorities and Democrats, often to the point that the Supreme Court has to strike them down as unlawful.