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I get it Rodian. You can use numbers (population), but I can't use numbers (consumption). You can use analogy (humans on earth = rats in a cage), but I can't critique the analogy.
Paul Ehrlich should get some sort of medal for closing so many minds, and allowing the biggest culprits in ecological disaster to shift responsibility to the most vulnerable--and least culpable--members of society.
I guess justifying class ideology beat classifying butterflies. But it's unfortunate that the misapplication of population studies through analogy set back the environmental movement by decades.