Why don't you try to understand why they're protesting in the first place, rather than disagreeing with how they're protesting. As long as it's peaceful, why does it matter to you how they protest? You have to look beyond the 60,000 foot viewpoint of "disrespecting our country, flag and the men and women who fought". All of the protesters that have been asked why they're doing it have been clear it's not a slight against the military, but a way to bring attention to what they feel is an AMERICAN problem - police issues with black American citizens.
Then again, I'd never expect a white Kentuckian to understand what it's like to be afraid to be shot for being pulled over for a California stop. This is where we are back to the issue that people won't understand another person's plight unless it at some point directly affects them. Takes a unique person, I suppose, to be able to step out of their "white glasses" and see it from a different vantage point.