Quote - Well then think of those images of "thin" women as motivation to stay fit, rather than pressure to conform.

Why would I want to do that when I consider them unhealthily underweight? The nicest images shown at the top of this thread are the "voluptuous" women which many consider "full figured" or "plus sized" and some might even call them "fat", which isn't the case at all.  They are simply typical, average,  normal sized women. 

And that is the entire problem right there.  To be  average/normal and at a healthy body weight is deemed unacceptable in the eyes of society and clothing designers.

You may not realize it but you also fall into that "society" catagory with that statement of "think of those images of "thin" women as motivation to stay fit."  That implies that to you anything but "thin" is not fit. 

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi