I’m not sure how to formulate a response to this. It’s so utterly misplaced. This is like saying that investment isn’t possible because eventually entropy will consume the universe. Yes, in some sense this is true, but in a much more practical sense you should still be planning for your retirement.
Even if you believe that in your lifetime the human race will collapse under the strain we’re creating on the planet, investing is still the appropriate hedge for your doomsday “die in a catastrophe” plans. You can refuse to call it “investing”, but then you’re just arguing for a pointless definition that no one else really agrees with.