Earlier quoted context omitted.
Wow, that's a complete cop out. Can you come up with any definition of "terrorist" where significant numbers of the one billion Chinese are commiting terrorist atrocities abroad, for example?
So let's quantify your definitions of "significant" and "terrorism". In the past 5 years, about 2% of terrorist attacks in Europe were found to be religiously motivated [0]. The majority are perpetrated by separatist organizations. There are over 1.6 billion Muslims worldwide [1]. Size estimates for the terrorist groups are: ISIS (52k - 258k [2]), Al Qaeda (19k-27k [3]). There are others, but I believe these are the…
http://www.vox.com/2015/1/15/7552225/terrorism-europe-chart
(and you can add a big chunk of green for France November 2015 now too)