The "Greatest Generation" is way before Boomers, and they still seem to get a good rep. I feel you are just describing how post-Boomer generations (rightfully) see Boomers. The second part (the ones after them being entitled and having no direction) is absolutely universal, though.
It always works both ways in every generation. Every generation imagines itself to be more intelligent than the one that went before it, and wiser than the one that comes after it, as George Orwell said. I've seen my childhood friends transformed from "adults suck, they always underestimate kids today" to "kids today now nothing about respect!" in the blink of an eye. It was bizarre, especially since kids today aren't that much different in context.