This is my thought exactly.

Look at the portrayal of the non-animated US president who is shown on video -- he appears to be a perfectly healthy white male!

WALL-E showed what happens after 500 years and many generations of completely sedentary lifestyle. *Not once* did the movie imply that fat people destroyed the Earth. Never did it even so much as hint at that. This complaint of the movie is 100% without merit. Furthermore, complaints that the portrayal of fat people on the ship was supposed to be humorous is off-the-mark too - it is commentary on what life would be like if this sort of scenario were to happen. Falling off a floating chair and not being able to move your own body *is* pathetic, I don't care whose feelings are involved if eating cupcake smoothies is how you got that way (if you have a genetic disease, obviously that is a different story. The movie took great pains to show that being sedentary and eating crappy food is how those people got fat, not because of diseases).

I also had a problem with the ending: all of a sudden we have animals and vegetables, because one plant was growing? A simple nod to a Jurassic Park-like DNA cryogenics chamber on the Axiom would have been enough to explain how this wide variety of life were suddenly available. I can remind myself that it was a kid's movie primarily, and needed a happy ending... we can pretend that the movie ended when the Axiom landed.