if they are taking a bottle of water and a sandwich because they are exhausted, that's fine. If they are taking expensive electronics and brand clothes, they are low-life scum deliberately allowed to behave like this by the oppressive class, to taint the protests. It's hard to see which is happening on this video, but I am assuming the latter.

They aren't stealing bread for their children

If you can afford Nike, you can afford a loaf of bread. I've met people in developing countries who are wearing sandals worn paper thin and are pushing most of what they own around on a cart. They get only one meal a day, and still refuse to steal - instead, they do whatever they can to make an honest living, however modest it may be. Those are the ones who deserve sympathy and respect, not the hooligans barging their way into shops to help themselves.