You making two major assumptions based on men joking about not desiring a massively obese women. You assume they are Incels and assume they are obese themselves. Don't do that man. I did not think you were feminized like that. Leave the attempt to shame men for not desiring women we find unattractive to women we find are unattractive.
Also, "the logic was not logicin" because as you even stated in another post, those women stay getting pregnant. So those women are not femcels because of a lack of sex, like that other brother tried to imply. Sex is easily available for women, unless they are visibly diseased. It is relationships with men they desire that is the difficulty for them.