It is like a circle dance...the muslims are holding hands with the left and the left are holding hands with the Democratic party.
Horowitz boils it down to this:
The Left believes world socialism is inevitable.
The US delays the inevitable.
Anything that weakens the US will hasten world socialism and is therefore moral.
Islam opposes the US and if given adequate resources, will weaken the US.
Therefore, support of Islam is moral.