what other channels exist to remit to mexico? CC thread level stuff?
for me? i'd probably just set up a new checking account at a us bank, send an atm card to the person i currently send money to and just deposit money there instead of sending it.
if i didn't want to do that i could send the money to a person in a third country and have them send it to the mexican party. or deposit enough money into that person's account when visiting mx, or send physical money with a friend or relative, or send the money when i am, or a friend or relative is, visiting a third country. or set up a bank account in a third country for the mexican party and then remit the money to that account.
of course if this tax actually existed, it'd rapidly bring into existences businesses in third countries that would process payments and then resend them to mexico for some fee lower than the tax. not to mention bitcoin and other blockchain cryptocurrency crap that i don't really understand but which, as i understand it, could be purposed to transfer money.