Because you can't verbalize a response? You did know that the 9/11 hijackers had legal drivers' licenses just like they still would under this bill don't you?
Sorry, you're wrong.
Several of them obtained Virginia ID cards (not DLs) under false pretenses and by using phony documents. At the time, it was possible to have a third party attest that you were a resident of Virginia in order to get Virginia IDs, DLs, and learner's permits. No proof of residency or proof or presence in the U.S. was required.
Worse, the people who provided these documents were running a larger forged documents business in Virginia, and at least one of them was an illegal. IIRC two were convicted and one was deported.
The hijackers made their first phony documents connection at the Dar al Hijra mosque in Falls Church; who in turn escorted them to the 7-11 at Bailey's Crossroads where they met the broker; who then escorted the hijackers (on more than one occasion) to the DMV on Five Mile Run.