As much as that sounds good, it 100% will be abused. Jim Crow laws were used as ways to keep out educated people by giving local officials the ability to create answers that could go both ways then penalizing the answerer when they inevitably got it wrong.

This would be used the same way to keep out the anti-establishment candidates.

Don't think the constitution applies to illegal aliens? Well you'd be wrong because of court decisions, guess you cannot vote.