why not religionism ?

[The Architect Of Fate]

Islam is a sectarian idol with two main heads: Sunni Islam and Shiite Islam.
Inside that idol, there are believers in secular law, believers in the old ways (aka Salafies), the Shia have their Twelver cult,... .

Yup you idiots have been killing each other over fairytales forever.

So which one are you pinpointing to ? I understand that the Islamism you are against is the infrastructure that contains a school of thought guarded by some old beards, and a group of followers for it, with the goal of global domination via war.

No one supported by various tyrants throughout Islamic history and tolerated throughout the Islamic world 

I can understand the above being a threat but imagine a country bombing civilians and threaten its enemy with atomic Holocaust, what to do in front of its invasion? greet it with flowers?

No Muslim country has ever been nuked and nukes were only used by the west as the last resort, And once again funny how you never criticize other countries for bombing civilians, And with exception of Iraqi invasions have been provoked.  

In other words the chasing people and killing them will make them chase you too.

Accept we were not chasing you and you would have done so anyway 

Just like Americans chased the British once.

Not even remotely the same.