It's difficult to define the "them" that has to be fought. The "them" are those cells in Europe mostly (and particularly in Belgium and France), and the lone wolves inspired by some form of radical jihadi propaganda though they are mentally disturbed to start with and most with criminal backgrounds.
There is no doubt that if ISIS were to be wiped off the face of the earth today than the incentives for both the cells and lone wolves would be tremendously reduced. The question is how do we fight his other "them".
There are two principles in the goal of making ISIS history: One is to get the Arabs to do the fighting; and two, have an outcome that would not result in a bloodbath or despotic government following ISIS being consigned to the dust bins of history.
This is easily solvable if the US wants to be a colonial force for the foreseeable future at the cost of billions of dollars, lives and attacks on the homeland or our assets abroad. Maybe this is what da Cainsta has in mind when he speaks of "time to step up the war against them".
Nah suh? Or maybe Trump's magic will solve everything at no cost of lives, $$$ or attacks against the persons of America traveling abroad.