Hmmm. And what does bin Laden say?
“I'm fighting so I can die a martyr and go to heaven to meet God. Our fight now is against the Americans”
Sure doesn't sound secular to me.
Islamic Marxism is still Islamic. They don't say “Marx Akbar” when they cut off peoples heads and film it for their delighted audiences throughout the middle east; they say “Allah Akbar”.
Islamic Marxism is about as Islamic as Marxist-Leninist Liberation Theology is Catholic or Protestant. In either case, the Communists were adapting the message of revolution to penetrate otherwise hostile cultures.