One thing is rarely discussed about the Mexican constitution on citizenship is besides being unable to vote one must be a citizen to own land and they are very restrictive about granting citizenship. Because of that a US citizen besides not being able to vote, cannot have title in their name to any property in Mexico. And until that is changed the US and the affected state should consider making that reciprocal.prohibiting citizens of Mexico or countries with similar restrictions from doing both.
When One World Government® finally arrives; then all laws will be uniform.