I'm not so sure you do get it because it seems like you want to hold protesters to the exact same moral judgment, despite agreeing with a factual analysis of how infrequent the most egregious behaviors were.

If you understand that, and, more importantly comprehend it, then that needs to cash out in your moral assessment of what happened, otherwise you have no business saying you agree or that you understand.

If the opposite of love is not hate, but indifference, then the opposite of "I understand" is not "I don't understand", it's "I understand, but still..."