Yes, all protest at some level is about anger over government action/inaction, a direct voice of the people when they feel unheard. But the first "capitol defender" u/lettergram was suggesting that Trump should have his Twitter back to abuse reality, so his loyalists will feel heard. The person you responded to was making the point that these people can be heard, and have been heard. Their point is invalid.

I don't think we disagree as much as it seems.

Postscript: Check that first link to see why I got rebuttal-happy when you compared it to BLM. A lot of bad-faith or otherwise ignorant actors are trying to draw false equivalence to the movements/actions, and the narrative needs to be challenged.