The gathering was a social one by the employees and management of a division of the county government. Nowhere is it reported that the party was based in religious or theocratic themes. These were people that just got together to wish each other well and exchange pleasantries for the time of the year. Yes, it was a secular Christmas party, as they are actual events.
Most business based Christmas parties are just that and people join in them to socialize and not to expound on what their faiths or religious affiliations profess.
As much as I can find, nowhere is it reported that the attackers spouted epithets against christianity as they went about their dirty business, nor praise for their religion or prophet was shouted out.
There were people of different religious persuasions present and none were exempt from escaping the onslaught. One was a devout Messianic Jew. One was a Christian that dabbled in Hinduism. One was a Catholic. One was a naturalized Iranian-American religious refugee. The bullets didn't seek out a particular sect. You're reaching for a generalized explanation and there is none at this point in the dissecting of the situation. Individual lives were taken by two politically motivated terrorists with an indoctrination of religious extremism as their focus. To say that they targeted mostly Christians is too broad and an unsubstantiated assertion.
I hope to say with some assurance that we won't see any massacres of muslims in America during their holy times as that is not what we profess to be as a country with a conscience. To do otherwise would place us in the same arena as those murderers. That would get us nowhere in the long run to finding the answers.
The FBI, CIA, NSA, will sort all of this out. Give them time.
' Two politically motivated terrorists ' didn't care who was what, they only knew or cared that these folks weren't muslim. Seems to me thats all that mattered.
I think we have a tendency to over think these things, politically motivated terrorists keep things simple.