I suppose it's possible that sometimes perfectly reasonable and widely popular policies like showing an ID to vote help one party more than another.
This does not mean they are not perfectly reasonable and widely popular.
Why should the party in power be allowed under law to manipulate voter roles in their favor? Is there an impelling argument that this is good for society?
Requiring an ID to vote is just common sense. People from other countries who have joined the 21st century laugh when they hear people try to make it into a political issue here. Letting someone prove who they are with a utility bill is an absurdity.
Maybe the people too incompetent to get an ID may largely be Democrats but that is hardly a reason to jettison basic common sense.
Laws preventing felons and illegal immigrants from voting hurt Democrats too. That doesn't mean they aren't reasonable.