Is it bad to desire thinner women if I am not so thin myself?

I am 42 I am heavy NOT HUGE but on the heavy side but I am not at all attracted to heavy women. I think I am good looking and all around nice guy but I think I will be alone for the most part because I am only attracted to thinner women, and in my experience thinner women just don't go for the bigger guys regardless how nice they are, seems they would rather have a 'ken doll' that treats them badly for appearance's sake then a truly nice man.
Is it bad to desire thinner women if I am not so thin myself?
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