A Muslim who believes in his religion would 'investigate, publicize, and condemn' crimes against others, Muslim or not.

If he put his communal identity above his religion, then he would not care about people of other religions.

If he put his national identity above his religion, then he would not care about people of other nations.

The thing about communal and national idenity. They are both equally irrational and subjective.
But communal identity certainly resembles religion a lot more. It is like what is left when you take the "Asolute" out of it and replace it with 'absolut' so to speak. (I am being figurative here - not talking about alchohol per se).

Am I fanatic, then? I just think God is a bigger deal than what passport I am holding.

Plus, I am not trying to divide your country along religious lines.
You are trying to divide my religion along your national lines.
You are not the first, and won't be the last.
My religion has been here 14 centuries while your nation has been around 50 years.
I think our chances are better than yours, my friend.