I don't think we can blame Gen. Y for this one
While there are exceptions, animals are usually a product of their environment. If we're screwed up, it will largely be because we have been screwed with. How can a generation just go bad? It doesn't, and the reason behind it lies in the world that the older generations have created.
I'm not actually saying that we're screwed up and that baby boomers to blame, but for those that do thing that, consider the probable reason for it.