Well he has to be since he affords companies cheap labor on his border cities, which are thriving on both sides of the border. Perry will do whatever he needed to in keeping His southern border open and actively committed to building business statewide, and the revenues from these, as well as Internationally when the port there will be significant to the pipeline deliveries.
Whatever makes Texas business and corporate friendly he will do. Being a globalist regarding trade he cannot stand in any other way about amnesty....and those busineess and corporations will be funding his campaign.
That is just one of the reasons Perry favors the ILLEGAL hordes. I hear he also does so because he has a heart. :-P