I've tried explaining some of this to people on Twitter in recent days, and have been surprised by how hard it has been to get people to look at the definition of terrorism and see if it fits. It doesn't. It also looks like it doesn't fit the definition of hate crime.
Terrible crimes are not necessarily terrorism. Muslims can be victims of non-religiously motivated crime just like the rest of us. Neighbourhood disputes, even just about parking, result in more shootings in the USA than anti-Muslim sentiments.