I take pictures all the time. While the Flight attendant in this situation seemed a little over zealous, it is not a huge deal and it's not why you got thrown off.
There are a few words you can not say on a plane. Never say "bomb", and NEVER say "terrorist" in any context. When you said, "I'm not a terrorist", you were doomed. Sorry. It had nothing to do with you taking pictures, just your naivety about language, perceived threats, and the illusion of security.
Also don't mess with business class. That is their cash crop.
There are a few words you can not say on a plane. Never say "bomb", and NEVER say "terrorist" in any context. When you said, "I'm not a terrorist", you were doomed. Sorry. It had nothing to do with you taking pictures, just your naivety about language, perceived threats, and the illusion of security.
Also don't mess with business class. That is their cash crop.