It's not illegal... in theory. However, as the State has repeatedly removed locations for which minorities can obtain IDs and narrowed what is and isn't considered a form of proper identification... and has done so without making a compelling case that this somehow significantly cuts down on voter fraud (when study after study shows voter fraud at the polls isn't even a serious issue), the intent to subvert the voting rights of those minorities is clear, making this a violation of the Voting Rights Act and of the 15th Amendment. All the State needs to do is provide a simple, easy means to acquire said ID with the proper paperwork to these communities and it could avoid this infringement... but because the aim is to restrict voting amongst minorities, it will never happen. If/when this issue reaches the Supreme Court, it is likely the would ether need to overturn the Voting Rights Act or require the state to provide means for these effected communities to acquire the required ID.Congratulations on your support of requiring picture ID to vote, then. Which, incidentally, is not a right guaranteed by the constitution.
This is sort of like the Chicago and New York examples I already mentioned: an infringement is occurring because local governments are taking extraordinary steps to prevent the use of a right. A state does not have the ability to prevent your exercise of a Federal right, unless you are a convicted felon. Thus, this ruling deserves to be overturned at the Supreme Court on the basis that a State/City is doing the job of the Federal government when it shouldn't be able to.