it might be important to remember that fat acceptance isn't a civil liberties issue (at this time). it's a social issue.
uhm, i think that both ladies on the images are nice, but they have a very different 'look' and body type as well. I mean, i could work out just as those athletes do, and I won't look the same. My body type is different (closer to the "girl on the right" or the model) -- tall and thin -- but I do have larger muscles than your average ectomorph. Those athletic ladies appear to be mesomorphs (pretty center-of the meso spectrum), and so they are much larger (more muscular) than I would be.
It's possible to appreciate the beauty of all body types -- fat, muscled, thin. Honestly, I do admire all kinds of ladies. And I admire all kinds of men too.