"Thousands", obviously, are not enough.
The West has met every previous outbreak of jihadism with a defensive stance -- at Tours, Vienna, etc. The jihadi horde was turned away at the gates...but they were not pursued...and exterminated.
While technically an invasion, the Crusades pursued limited objectives -- it was about freeing specific religious locations, not about defeating Islam.
I concur in your assessment of Islam's persistence. That is why, at some point, I believe the West is going to have to pursue a counter-offensive and exterminate a selected -- and significant -- portion of Islam.
Enough to cause a "Reformation"...
...” the West is going to have to pursue a counter-offensive and exterminate a selected — and significant — portion of Islam.”....
They will only do so as a defense ‘from Islam’ ‘after’ it engages in fighting as we see with ISIS...not while it’s multiplying it’s numbers (nation infiltration) in order to fight.
There are far too many Muslim Nation Leaders that support them, behind closed doors, for the West to actually pursue..and certainly would not stand by for extermination.
Oil supplies in the main Islamic countries will not go on forever...and they know that...so the “fight” to obtain oil where it is to be gotten, throughout the ME nations, will continue. Both by the west and the Arab and Muslim countries.
Keep on eye on Israel’s new found resources....they will ‘all’ want those ,as well as Russia and China, in no time.