Terrorism is about creating terror. It's about magnifying, in your enemy's mind, what is actually a small threat. If you have an entire military, you don't use terrorism; you kill your enemies en masse. If you're a small band of nutjobs, you scrape together the resources for a few small hits. You hope that fear will do the rest of the job of crippling your enemy. The way to defeat terrorism is to not be terrified . T…
If we're talking about the US population, then 0.0001% is thirty people. They can probably manage that.
However, on your broader point, nouveau-Islamist terrorism differs from more traditional varieties (the IRA et cetera) in that its practitioners are markedly less rational. For them, terrorism isn't a tool which they're applying calmly in the hope of achieving a political goal. Most of them seem to just want to kill infidels, because the existence of people who aren't Muslim makes them angry.
So I don't think the refuse-to-be-terrorized strategy actually works. They don't particularly care whether you're scared of 'em, as long as you die.
(They're not very rational or very nice.)