I get it, I do. We all want to make a mark on life, for others to be impacted in some way by our existence. Some people build, or create and their legacy is bound up into what they make. But destruction and desecration are far easier routes to making an impact on others. When you have no hope, fucking shit up is a way to stamp your existence on a society which otherwise ignores and marginalises you.
Plus, also, some people just want to tag the world.