So you are one of the people who want to give the Rio Grande to Mexico. Great. Are there any other parts of our country you want to give away to foreign interests for your "security", or would you move on to giving up your liberty? I take it you also don't care about the population of creatures in America who need water access to live. Since you don't care about Americans having the right to access the Rio Grand to fish, boat, recreate, swim, or just enjoy, why would you care if we kill off large parts of the desert life.
Of course security of America is more important that a river. If you think otherwise, that is surprising.