In the event of a nuclear strike against the U.S. that's not nearly enough, and I'd venture to guess that the vast majority of Americans would agree with me.
Also, I would shore up the border, cancel visas and deport visitors from suspect nations....
Well, I agree with you on that one. In fact, I maintain that it's reasonable to conclude that because we haven't taken these steps we're not entirely serious about fighting this war. ....or that we have other priorities.
What you fail to grasp is that we're not just talking about a few Islamist nutballs here. We're talking about millions of them, and perhaps tens of millions. And considering that the fanaticism is getting more widespread by the day, it's inevitably going to get to the point where nuking their epicenter - Mecca and Medina - is the only option we have. .....And in the event the U.S. is nuked, not only will that option be on the table, it'll most likely be used.