I'm absolutely effing baffled at your statement so forgive me if I seem incoherent. Here's what I assume from your sentence:
You think that, instead of ridding the world of billions of rather large and bulky objects that won't decompose for thousands of years, we should leave those alone and instead focus our thinking on how not to produce any more.
I imagine a cartoon of a man standing on the earth with a megaphone screaming,
"Everyone - listen up! This - this thing right here - it's incredibly important and I want everyone (and i mean everyone) to focus exclusively on it!
World - are you listening to me?
Stop trying to do other things! I don't care if thousands of you end up reproducing each others work - it's all in the name of solving this problem!
I said stop trying to multitask - we've got to exclusively solve this one thing!
World?
Hello?"