BLM declared itself as a peaceful movement and its protests resulted in some riots. Boogaloo folks call for a race war and actually are responsible for racist killings and terrorism.
Proud Boys - who are very much associated with Trump - even burned a church.
That's the difference between these two. So if you're saying US police doesn't perceive far right as equally dangerous as BLM... you're 100% right and this is the core of the problem.