Still, whatever number you use, the fact that everyone seems to forget is that there is a FINITE NUMBER, and it is rapidly decreasing. Further, all previous wars/insurgencies show that with each additional terroist death, it becomes even more difficult to win.
Therein lies our difference of opinion. The number of terrorists/insurgents is not constant or finite. It can increase or decrease depending upon the circumstances. Israel has been fighting terrorists for decades and over generations. Insurgencies are not won by body counts, but by convincing the general populace it is in their interest not to support the insurgents.
Terrorist/insurgent wars can also succeed as was the case in Ireland against the British, which resulted in the formation of the Irish Free State. Chairman Mao was also successful.