" Do you know how many terrorists that wanted to kill me I have come face to face with? 0.
Remove the "I have come face to face with" and that answer will certainly not be zero.
No, that answer will almost certainly still be zero. The answer to "Do you know how many terrorists want to kill a generic Westerner?" would not be zero, but who fucking cares? There's a few white people who would be happy to see a generic black person dead (and vice versa); there's a few Irish who would be happy to see a generic Englishman dead.
The relevant question is not whether there exist some people willing to kill your countrymen, because that will never be an empty set. The relevant question is whether those people are likely to actually kill more of your countrymen than moose, sharks, or bed sheets. The answer is that you should be much more frightened of bed sheets than either terrorists or sharks.