Mexicans who have no Indian blood would still be classified as Hispanic, a race classification that is not genetically determined. Be careful though, lumping all Native Americans is one huge group is not being very respectful of them.
Lead wheel weights have been banned in the EU since July 2005, and Japan and Korea are phasing them out. Yet EPA has refused to enact a ban, instead relying on voluntary industry action.
12 bolt 2-piece steel wheels, with no beadlock/ runflat with GSA's weighs 110 lbs. In my opinion you should not use a 12 bolt wheel without either a runflat or a beadlock. Unless the tire is inflated to at least 20 psi the tire can come off the rim.