100,000 is a good start, but just a start.
The more of them who are so inclined, who have been indoctrinated with this ideology of hate and terror, to come against us in these places, the better. Lots of harvesting yet to do in that field...but it is an essential harvest and the more we do to draw them into these fly traps, again, the better.
In the mean time, we have two nations and other tens of millions liberated (or at least with a clear shot to be liberated) from that same terror and tyranny and that is a great bonus because it gives the real prospect that we will not have to go back there and do it again. As I say, that is a nice bonus and strategic plus in the overall fight to destroy the terrorists and their ideology.