To a very large extent this has been the result of US intervention in the region. The secular regimes of Iraq, Egypt, and Syria — though rotten to the core — were indifferent to the presence of Christians since their Scripture commands them not to be troublemakers (Romans 12:18, for example.)
US policy has either overturned these regimes outright or destabilized them such that they are overrun with Muslim theocrats. Islamic Republics cannot tolerate Christians in their midst, and that is just what US policy is arranging for. (It’s not just an Obama policy, either.)
We as a nation and as a people, have destroyed Christianity in it’s home.