There isn't a single mindset about this stuff in the US, or in France I assume. I'm American and I'm bewildered as to how people can be significantly overweigh

There isn't a single mindset about this stuff in the US, or in France I assume. I'm American and I'm bewildered as to how people can be significantly overweight, much less obese. I would note that many/most obese people have tried and failed to reduce their weight (or temporarily succeeded). So it's definitely seen as a highly negative trait. There is a "body positivity" movement here that discourages people from feeling shame about their appearance. Some people see this as a negative thing, with potential health ramifications. I'd also say that obesity in the US varies quite a bit based on geography and income bracket.