A comment by Livius from the link, with which i agree:
“Islamic terrorism comes from Islam, and has been a feature of the cult since the beginning.
Both Russia and the US were stupid enough to think they could use this against each other during the Cold War.
Both of them had obviously forgotten that the way the Muslims got to overrun Spain in the 8th century, shortly after the foundation of the cult, was that they had been INVITED in by a king who was warring on another king and thought he could use them to attack his enemy. They did attack his enemy - after killing the first king himself, of course - and then went on to attack all of Spain.
This is playing out just the same way.”