I went Googling for an answer to refute your statement and came across this article from Science Daily - https://www.sciencedaily.com/releases/2018/03/180323090

I went Googling for an answer to refute your statement and came across this article from Science Daily - https://www.sciencedaily.com/releases/2018/03/180323090958.htm https://www.sciencedaily.com/releases/2018/03/180323090958.h... - that supports your argument. In my view, the key barriers to landfill mining are the same as those faced by today's recycling industry: the costs involved in extracting value from waste (someone has to pay the pickers working in the recycling sheds - possibly one of the worst jobs in the world); and finding viable, stable and sustainable markets for the materials that do get extracted. Volatile recyclate markets were a huge problem for sustainable recycling back in 2000 and I doubt much has changed since then.