Forcing Americans to always wear clothing while swimming or sunbathing even in designated or secluded areas is as bad as forcing women to always wear burkhas.
Naturism is also about accepting yourself for what you are… A creature of Nature. It’s about not trying to fit a single perfect body type, but considering each and every person as an exciting and beautiful part of Nature itself. You really don’t need to be slimmer, or bigger, or rounder, or more muscular, or whatever else, to be accepting of yourself and to really believe that you truly are beautiful. Also… neither accidents, or surgery, or childbirth, or ageing, or even your place on the social register can or ever will change any of that.