Effecting political change through violence is one of the very definitions of terrorism.
Only if you try to oversimplify it. Citizens in many countries try to overthrow their government for various good, or bad reasons. It is not terrorism unless the campaign is aimed against the citizens not the government.
I assume we can find your objections to DHS terror level alerts when were were hunting down OBL and Al Qaeda?
Instead of assuming things after a straw man argument, you should step back and recognize what terrorism is, that some groups do it and some don't, so it is ridiculous to try to lump them all together.
BLM and other groups at protests against police misconduct did NOT organize plan on violence in order to meet their objectives.
Sure they did, just trying to hide behind the veil of civil protest. If those too ignorant or willfully ignoring the potential at first, after seeing it happen, clearly understand the end result yet kept at it. In fact there were groups traveling from city to city to fuel this.
I am not suggesting everyone involved in BLM was a terrorist, nothing like that, only that certain segments specifically used these events for that purpose and everyone else there, aided them no matter how good their intentions were in attending, and ultimately everyone involved formed a mob that used intimidation to stop all the other citizens from functioning normally which is a form of terrorism, making citizens fear to merely walk down the street or defend their own property!
In many instances there were random acts of violence that started from people out of town. Those acts were not different when violence breaks out after a sports championship.
Not at all true, they went there specifically to cause disruption and make people take notice, and to vent self-induced rage that comes from a mob like mentality. Show me the sports championship violence that burns down hundreds of businesses and clogs areas for days and days where they keep coming back?
You can in no way compare that to the planned, coordinated insurrection of Jan 6 attempting to stop the vote certifications of the United States government.
Yes, I can and did. Both planned events. BLM was about terrorism, attacking individuals and their businesses. Jan 6 was about an attack on the government, not terrorism.
I'm going out on a limb and assume you don't consider white people terrorists
Has nothing to do with race, only the actions taken. Yes there are white terrorists. In the US they are usually lone gunmen shooting up crowds, trying to teach society a lesson.