In the past decade 17 white nationalist terror attacks, 17 attacks made by people declaring allegiance to Islamic terrorists. I’m on a phone or I would list them out. If you go back 20 years, then you end up with the majority being white nationalists.
Most of those Islamic terrorists were radicalized independent of any terrorist cell inside the US, and many of the spree killings were just claimed via social media by ISIS without a direct tie or propaganda found.
EDIT
And going by deaths 9/11 skews the data by being 99% (hyperbole but not by much) of terror related deaths in the United States period.
