Implying that it may be a solution, doesn't make it a solution.

You must first provide evidence that your method is viable, for the problem to be solved.

If the fat woman is into taller guys and the short guy is into thinner women that doesn't solve all that much.

A better solution would be for taller guys to specifically date taller women so that the shorter or medium height women are still left for the shorter men to pick off.

On the other side of things, the better solution would be for chubbier men to date chubbier women simply because physically it does match better if you have similar body weight in sex although the man having slightly more is preferable for things like carrying her to the bed or holding her against the wall depending on what you like to do during it.