The disconnect and problem with voter ID is that it is a higher standard than the standard of registering to vote.
See what can be used for an identification requirement below from Bexar county to register to vote:
What if I don't have a driver's license, personal identification number, OR a social security number? Can I still register to vote in Texas?
A voter who has not been issued a driver’s license or social security number may register to vote, but such voter must submit proof of identification when presenting himself/herself for voting or with his/her mail-in ballots, if voting by mail. These voters’ names are flagged on the official voter registration list with the annotation of “ID.” The “ID” notation instructs the poll worker to request a proper form of identification from these voters when they present themselves for voting. Acceptable identification includes:
a driver's license or personal identification card issued to the person by the Department of Public Safety or a similar document issued to the person by an agency of another state, regardless of whether the license or card has expired;
a form of identification containing the person's photograph that establishes the person's identity;
a birth certificate or other document confirming birth that is admissible in a court of law and establishes the person's identity;
United States citizenship papers issued to the person;
a United States passport issued to the person;
official mail addressed to the person by name from a governmental entity;
a copy of a current utility bill, bank statement, government check, paycheck, or other government document that shows the name and address of the voter; or
any other form of identification prescribed by the Secretary of State.
The above allows an illegal immigrant or felon to register to vote and simply show a paystub or utility bill.
The new law requires a more stringent identification. That will certainly stop alot of folks from voting that shouldn't be registered to vote in the first place. This is why the Democrats don't want this voter ID law, especially in south Texas.
The root of the problem is the voter registration vetting process (or lack thereof)by the counties.