The gas problem isn't necessarily going to help with the deportation of illegal immigrants (thinking of the gas needed to deport them here), but doing so will be offset by the reduction in costs of healthcare, uninsured insurance rates will virtually dissapear, and we only keep the immigrants that actually want to stay here legally and fight for our nation to prove their desire.
Not that it will ever happen since every sewer-roaming politician in the U.S. wants the illegals to vote for them.