What really is going on is that the US church has been compromised by the $$ they get from federal, state and local governments who want as many illegals in the US as possible.  If the honey pot dries up the bishops' lifestyle of privilege and status collapses.  Any lecture from prelates who do not disclose the conflict is intellectually dishonest.  Catholic social justice never was intended to take assets from the general population and redistribute that wealth based upon the political agendas of the politicians or the economic self interest of the Church.  In addition, where is the social justice lecture concerning the criminal drug scourge that tags along with all of the law breaking entering the country illegally?  The bishop's position, in its essence, is that breaking, aiding and/or abetting immigration law violations are moral acts and enforcing those laws is sinful.  

http://www.washingtontimes.com/news/2015/sep/24/catholic-church-collects-16-billion-in-us-contract/