This is wishful thinking. "Kill and rout the kufr" is true today and has been true for all Muslims making Jihad. Is also true for the Muslims who are quiet but like what the Jihadists are doing. Look around the world and you will find Jihad is for real today. Not just in a distant past.
The problem with Islam: The Koran tells us (even glorifies) about the life of blood, assassination, conquest and Jihad that Muhammad lead. The Koran exhorts Muslims to emulate the "exemplary" life of Muhammad. The only Muslims we can deal ones who ignore this exhortation, and there are many. They are Muslims only due to birth and habit. But this can never negate the fact that the central figure in Islam decimated those who resisted his religion_in_the_making. That through history many of his followers have copied Muhammad's aggressive, murderous ways.