Here's my opinion on this.
Let's say someone supports BLM. Do they have the right to condemn the capitol storming? Nope.
Let's say someone supports the storming of the capitol building. Do they have the right to condemn BLM? Nope.
There are more Republicans with this point of view than you think. I agree with you that more should've been done to stop the capitol riots, because the whole situation was stupid and useless. But so were the BLM riots, and I do believe burning and looting buildings is at least equal, if not worse, than the capitol riot.
I'll say it again, I agree that the capitol riot was one of the most retarded ways to approach to the situation.