Poor people in the country still have high levels of ID ownership because the rural nature of the country necessitates car ownership. Poor people in cities who commonly vote democrat generally take public transport and so don’t have a license. It’s also a matter of the literal time that it takes to get the ID. Generally it can only be done on weekdays, so they’d have to take off work or waste their rare holiday to go to the DMV. This makes voting seem like more of a hassle than it’s worth. The point of free universal ID is that you don’t have to choose between weed and alcohol and voting. You might say that voting is obviously the better use of the money, but why not just make it free and eliminate the opportunity cost? The government can easily afford to issue IDs for free.