There is a strange but obvious affection for radical Islam by the (misnamed) mainstream media and (misnamed) progressives. They share tactics (destroy ALL who oppose or even question). To speculate as to why I would offer both the radical Left and radical Islams “kinship” is a totalitarian mindset and a vitriolic hatred of Judeo-Christian values and their source the Holy Bible. When people worship God of the Bible first and foremost, their loyalties are not primarily to the State and the all-powerful collective (Islam is the state). Despots from Nero to Hitler, Stalin, Mao, Kim Jong-un, various Islam holy men all the way to dear leader BHO (and Hitlery?) demand and have a pathological need to be worshiped. A somewhat different take on Exodus 20:3: You shall have NO OTHER gods before Me.
It’s not strange at all. Both sides are against GOD therefore they are allied.