The coffee cup you use will end up in the dump. Consumption is our economy. What our economy does is convert natural resources into waste. All our goods will end up as waste. The same as with beavers or deer.
Consumerism is something else.
It might be important to differentiate here. I use them daily. I'm also sure that if all humans ate slop in human feed lots, we could cut down on consumption. To redirect my point to the starving who would love feed lots only redirects the problem, it does not address it. Yet I think it could be addressed directly.