> I don't think people are against it

Every time national ID gets moderately serious discussion it is revealed very clearly that yes, the people are against it.

RealID—which was simply national standardization of state issued ID (when used for a variety of important purposes) had intense resistance, too—and its the closest policy to national ID that has passed.

Social Security identifiers are not ID for the person, and anyway were adopted nearly a century ago at a moment of higher-than-current trust in the federal government.

It would help if the federal government didn’t show itself to abuse ID databases every time it gets ahold of one.

I don’t see how we could develop a national ID in an environment of such low trust (bidirectionally). You need a government that’s responsive to citizens and obeys constitutional guardrails, and citizens who trust the government to protect their best interests. We haven’t had that since the prior century (and last century the government was still breaking our trust, it just didn’t make the news).