Why is it so hard for lefties to understand the difference between the BLM riots and the right wing protests? ?

I keep seeing posts on facebook comparing the BLM riots to right wingers congregating at the capital. I'm not right or left wing, but is the difference really that hard to understand? One group was setting innocent peoples' private property on fire, looting, assaulting innocent people and cops, the other congregated in the state capital peacefully and are making  their opinions heard. They are armed, yes, but they aren't breaking any laws and nobody has actually used their weapons, and thus these protests have so far remained peaceful. There is no comparison to the BLM riots over the summer, despite the left trying to make them seem equivalent. I actually lean more to the left, but the BLM stuff crossed a line in my opinion.