You confuse verifiable, organized subversive and destructive action by more than 'just one' with promulgating an ideology, a culture and a disease that works tirelessly to infest even the second generation Muslims in this country, ENCOURAGES THEM, to do these things.
Just because our Media and our government won't allow the full extent of connection with these people to be outed, it doesn't mean that it doesn't go on. Our government is totally invested in maintaining the myth they have things under control when they clearly do not. You need only to examine San Bernardino and Orlando to see that.
Yes, Islam “inspires” its followers, but they were not actually acting in concert with a web of co-conspirators who are probably conspiring for other things and could be tracked down and stopped. 1 man is already stopped. There is no-one waiting to pick up his gun.
It is an important distinction.
And I don’t like dumbing down ANY terminology or any process. I don’t care who is perpetrating what, the definitions should be held to. Otherwise, all mass murders and serial murders are “terrorism”, but that is a separate category! (Yes, I know, since 9/11 we’ve been dumbing down this term already, as well as other things, but I’m still complaining.)
If you want to point out the motive, fine. More than willing to say he did it because of Islam. But technically, unless he had a web of conspirators connected to some major organization, it’s not terrorism.