Statistically speaking that claim would be incorrect, especially within the United States. Can you cite something other than your belief that this is the case?An Israeli Colonel put it quite nicely: "Not all Muslims are terrorists, but most terrorists are Muslim."
Statistically speaking, bombers or would-be bombers, especially in the West, are more likely to be Muslims than any other faith. A smart person might ask why that is instead of saying "oh, they're just isolated incidents. Nothing to worry about."