I think the media image of "ideal " men and "skinny" women is OK because I think the figures are cool. And we can try to make effort for the trend. I think it is good to have such a purpose.
Of course, we should accept many differences regardless of styles. It is dangerous to praise only "ideal" and "skinny" people because it means other people are not attractive.
But I think we don't have to worry about the discrimination so much.
In fact, people who have the styles media releases are not so many. Therefore, many goods about beauty and fashion are sold well in order to get ideal figure, I think.
Finally, I think it is important to think what does madia aim at, for it may only tell the real trend or make people buy goods. If we think the information is good and reliable, we should choose it. I think it is natural that there are many different of madia. So we need to find favorite media and information and it is each responsibility.