That's literally true, but actually, the lion is feeding off sustainable stocks of locally sourced animals that, themselves, have no impact on the environment and feed of grasses and shrubs unsuitable for consumption by any other creature.
Humans, on the other hand, are farming vast tracts of wheat and soya in order to feed cattle, cutting down rainforest to do so on land which isn't really fit for purpose, so the topsoil washes away after a few seasons leaving barren land, contributing hugely to environmental destruction, global warming and food shortages.

