The dominant life on earth began once as far as we can tell – though life might have emerged and failed multiple times before things finally worked out in our favor. Everything since then has been part of an immense food chain that ebbs and flows through pawn store MO photosynthesis, metabolism, growth and decay. In a very real sense the whole planet is one organism and it is that planetary organism that is threatened by the current dominance of one specie that learned to rig the game in its favor.
Addendum: I should probably have been more specific – pursuant to the above, I believe an organic diet is better for the planet than a strict vegan diet.
At the risk of appearing insensitive, I would observe that we can draw a lesson from the asteroids and sharks that applies to the current tempest in Washington. (If you are fully caught up in the quest for infinite justice and vengeance and self-righteousness and hate that so pervade the media just now, you will need to take a deep breath and relax before you read further.