Any immigrant who joins the army has a shot at becoming a citizen. Don't know how illegals get past recruiters, but probably some do.
How do they get driver's license's?
How do they collect unemployment and public assistance and work simultaenously?
How do they buy property, expensive properties?
I know a case personally where a man who bragged about being an illegal from Mexico, bought a $450,000 building to make income and had the 'white' tenants evicted and laughed about it