Shouldn't we prioritize people who are the victims of religious persecution.
If you are a minority (religious, ethnic, political) that is used as evidence of persecution and helps your claim for refugee status.
http://www.pewresearch.org/fact-tank/2017/01/27/key-facts-ab...
One should be very careful in ascribing rational motivations to things the Trump administration does - even his rhetoric (vague allusions to the attacks of September 11, 2001) isn't borne out by the executive order. He did not ban immigrants from a single one of the countries of origin of the 19 attackers.
I found this interesting as well
If Christians were de-prioritized, it was done by the UNHCR, not the US. And there is no direct evidence suggesting this happened, the fact that 10% of Syria is Christian does not mean 10% of the refugees would be.