You have to define terrorism properly
 

Who started the first world war ? Muslims ? Who started the second world war ? Muslims ?
Who killed about 20 millions of Aborigines in Australia ?
Muslims ??
Who sent the nuclear bombs of Hiroshima and Nagasaki ?
Muslims ??
Who killed more than 100 millions of Indians in North America ?
Muslims ??
Who killed more than 50 millions of Indians in south America ?
Muslims ??
Who took about 180 millions of African people as slaves and 88% of them died and was thrown in Atlantic ocean ?
Muslims ??
~~~ No ~~~
They weren't Muslims!!! First of all, You have to define terrorism properly... If a non-Muslim do something bad..it is crime. But if a Muslim commit same..he is terrorist...
This concept should be corrected.