The idea that the US could be conquered by ¨Islamofascists´is hyperbole.
And who specifically is making the claim that we're going to be "conquered" if we don't deal with them?? Without a name, that'd once again be an example of arguing a point, no one is making. Hyperbole?, yes. A claim someone is making?, no.
These fanatics do not have the resources, and no way to get them. They can be very annoying at most
No, they can kill thousands, at most, which they have done. And they have multiple ways to acquire resources, via stealing, purchasing over the black market, ransom, or just simply taking over city after city's resources, thru invasion & expansion. And the more recruits, across the globe, provides more opportunity to gather more resources