Everyone who commits any crime and is not a certifiable Moslem is ipso facto a right wing extremist. That is the official definitions aat work. The world of lawbreaking is neatly divided into two groups, Radicalized Moslem Lone Wolves and Right Wing Extremists. There is no other category.
I don't think it's that tidy. What about the Radicalized Moslem Lone Wolves who are also Right Wing Extremists? Easy problem to solve, camp them with the right-wingers.
Crime reporting along racial or political or "hate" lines is a political activity - expect dishonesty in the reports, in order to create misleading statistics. In short, the government is in the business of misleading the public. So is the press. It's a winning strategy, because the public is capital-G gullible.