So there are American citizens who do not have a driver's license and do not have a social security number. Getting a social security number is optional. The government just convinces most parents to get a social security number for their newborn so they can get tax credits.

The Amish do not participate in social security or driving automobiles, but they are citizens and they have a right to vote.

But this is only a small segment of society. No doubt California is actually registering illegals to vote. California is actually red, it just has too many election shenanigans