Illegals + mostly from Latin America + most of Latin America is Catholic + church needs the money ... even for a liberal arts guy the math isn't too complicated.
As for the cops, I wouldn't be too surprised if the rank and file aren't secretly cheering the Minutemen on. It's not the cops' fault the chief is a quota black and the INS has better things to do than round up illegals in Houston. No reason to pull the 100 Club decals just yet.
Wasn't Fiorenza involved in the pedophile cover-up in some way? My memory seems to want to connect his name with it for some reason.