Flower chucker

In class today I saw a picture by an artist named banksy. I was shown one of his pictures, flower chucker as I call it, which is shown below. It shows someone that dressed like he is rebelling, but he is throwing flowers. I see not a soldier, but a civilian, looking like he could be in a gang, but instead of throwing something to kill, he is throwing flowers to make peace. To me it resembles that in a world with already enough violence, instead of fighting each other, we should resolve the problems that divide us.