Meanwhile in other countries... Secure, easy-to-obtain, IDs since several decades.
Also, an ID is required to vote and since it is secure you don't need any silly voter registration (which is just suppression in the guise of verification).
The current system (without Real ID) isn't really any less "secure". All Real ID does is force you to show a citizenship document to travel. It's designed to put pressure on illegal immigrants to self deport and punish States like California for who issue driver's licenses to non-citizens.
There is no automatic reason that Real ID would even be required to vote, since voting is left up to the states anyway. If the state says you can use a business card to vote then you can.
Voter registration also ensures that you're voting in the right races. Because the US has so many local races, people living not very far apart may have different ballots for things like local water district. And people are terrible at updating the address on their id.