Short answer is the effect should be even overall, but what matters happens at state and district levels, so you could even disenfranchise more people of your o

Short answer is the effect should be even overall, but what matters happens at state and district levels, so you could even disenfranchise more people of your own party on the net and still end up with an improved electoral outcome. You could steal the vote from 500k Republicans in just Alabama and 150k Democrats spread across Wisconsin, Michigan, and Pennsylvania and have a net swing of 0 EC votes lost and 50 EC votes gained for Republicans. You just have to create policies (like closing polling place, making vote by mail difficult, create voter id rules that exclude college students) that have small partisan differentials in a few swing states, which is why the greatest effort and impact is in urban centers in the midwest (followed by Latinx populations in the southwest like AZ and NM, and African American populations in the southeast like FL and GA).