This actually makes me wonder what the definition of terrorism is to these assholes. If it's resistance to government oppression, then count me in. If it's inciting violence against the populace as a means of striking fear into said population in order to enact radical political change, well, as John Lennon once said "don't you know that you can count me out." And guess what. You can count out the vast majority of people who agree with me.
All studies like this do is alienate an already disillusioned population. It seeks to marginalize a group who want nothing more than the ability to make their own decisions about how their life proceeds, instead of merely acquiescing to the will of an uneducated majority.
Am I a terrorist? Absolutely not. Will I defend my family's lives and liberty with lethal force. You bet your ass I will.