I was actually considering something similar. Instead, define "first world country" as a county who's median yearly pay is at least half of hours, recognizes basic human rights, recognizes democratic voting, and doesn't punish their population for speaking out against the government or any government sponsored religion (such as the Muslim religion in various middle eastern countries), and also recognizes the rights of women.

As in, fellow countries that believe in life, liberty, and the pursuit of happiness.

Attempting to tariff any harder can have extremely adverse effects. The rich wish to remain rich at all costs.