system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: The Body/Fat Positivity Movement

So, I'm an overweight guy (I think my BMI actually falls into the obese category). I recognize that its not healthy and I'm actively trying to lose weight. Recently, I've started to hear a lot (on reddit and elsewhere) about the "Fat Positivity" movement. I know its especially popular in feminist and queer circles. Now, let me be clear, I'm not trying to offend anyone and this post is a likely *TRIGGER WARNING* for those with body image issues)

That being said, I just don't get it. I mean, isn't it somewhat objectively shown in science that being overweight/obese/fat is simply not as healthy as not being fat? Its one thing to be comfortable in your own skin, but its another thing entirely to deny science and say that being fat is just as healthy as not being fat. In terms of cardiac health, blood pressure, cancer risk, and simply being able to enjoy physical activity with other people (which I'm starting to realize is quite awesome and will be better when I lose more weight), being fat is not ideal. It seems almost dangerous for a movement to tell fat people "No, its all right, don't worry about losing weight. Being fat is healthy". Am I way off-base to think this? 

**EDIT: Thanks for the comments everyone. I guess the conclusion I've gathered is twofold.**

 (1) The Fat Positivity movement runs contrary to what most (if not all) in the medical/scientific community have to say about the healthiness of being overweight. And..

(2) That's not necessarily a bad thing. People all have various sorts of health risks. Smokers and drinkers are at higher risk for lung and liver disease respectively. Many athletes are at greater risk for bone, muscle, and neurological injuries from their sports. I guess there's no reason that people who enjoy eating and don't enjoy exercising should be stigmatized for their choices in ways that other people aren't stigmatized.
gpt
A lot of fat people feel really sad about their weight. Being sad all the time is actually bad for your health. Sometimes it's even worse than being fat, so accepting your weight can be better than constantly worrying about trying to lose weight.

Not everybody agrees that the sadness is often worse for your health than the fatness, but there are at least a few people for whom it's definitely true.