Illegal Immigration Causes Polution

The illegal stream of Mexicans into the US creates a considerable amount of pollution along its path. Will this cause leftist to oppose illegal immigration? Afterall, leftists attempt to stop the actions of Americans organized into "businesses" which result in polution. No, leftists will not take this views. Although leftists believe that the US is evil and the ultimate cause of all problems in the world, and that Americans live in horrible circumstances that are getting worse every day, the believe that the US should be the only nation on earth (or in history), that opens its borders to all people and makes them instant citizens upon their request. If the US implimented this plan, Mexicans wouldn't create these paths of garbage, and would instead steam in at border crossings... right into the evil belly of the beast.