Earlier quoted context omitted.
Landfills are storage units and will likely turn into vast repositories of useful materials when we have the energy and technology to sort through them. What is wrong with styrofoam piling up? According to wikipedia, styrofoam doesn't essentially last forever. Also, what's with the downvotes for asking a question? This place really seems to be going the way of reddit. Too bad... was a nice place to discuss the facts…
It's not dogma. You are saying "what's wrong with using things once then shoving it in a landfill". That behavior doesn't scale and is unsustainable. And that mentality leads to ever increasing pollution.
At some point, we're going to want to dig up the resources in a landfill. They're much more concentrated than in the natural environment.
The dogma is thinking landfills are one-way collection systems which grow without bound. As long as they're not leaking into the environment, they seem like perfectly reasonable ways of storing things we do not currently have a use for.