I would disagree. I believe that Islam is indeed a threat to us because it is a religion that preaches conversion by the sword and death to anyone who insults their prophet. And, because the moderates can't control the radicals
You may be correct that the Islamic terrorists could still be funded even without oil money, but they'd be far, far less a risk.
Ending their oil money is just one step, however, in ending terrorism here. The other steps are: refusing entry to all people from Islamic countries, sending home all non-diplomatic resident aliens from those countries, and round- the-clock-survellience of and inflitration of all Islamic institutions, businesses and communities here.
Your solution of military action overseas will just create more martyres for their cause and great loss of American lives. Plus, it won't eliminate the enemy within. And, you didn't answer the question: where and who is the enemy?
Here, and people like you.
Oh, you mean those other enemies?