Actually, we do have a database on every citizen, and, yes, any visa holder or visitor to this country should be in a database.
For citizens we have social security numbers, school records, military record if applicable, work records, phone records, insurance records, etc., etc.
That’s a mountain of a database, a large part of it accessible only by warrant, but some of it such as Social Security and IRS, accessible without warrant.
No doubt. But I do not think its a good thing for a candidate for the republican executive ticket to say, especially with the public as angry at the establishment as they apparently are.