nafta also encourages more immigration from mexico to the us. since small businesses can no longer be protected by tariffs, many small business owners in mexico cannot compete with the prices of subsidized products from the us and therefore many of them have gone under, or they lost more money than they could make. as a result, many mexicans have gone to the us looking for work. the human rights organization ezln (ejército zapatista de la liberación nacional), a revolutionary mexican grass roots movement, is a strong opponent of nafta and points out how its provisions only make the economic situation worse for the poorest in mexico and better for multi-national corporations.