I'm always amazed that they can argue this because it makes so little sense. Call it whatever you wish - God/Mother Nature/Darwin etc. - it's no dummy. Fit partners are more attractive because they're more likely to produce healthy offspring and stay alive for long periods of time. That makes sense. We know that fats are far more likely to die in pregnancy or childbirth, have children with issues, die young, etc. None of those things make them attractive. It's not society, it's thousands of years of genetic programming, but they think that can be overcome with some Instagram and HAES.