system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Hashtags or slogans like #bigisbeautiful or #fatisbeautiful are pointless

Firstly, let's assume for argument sake that society preferring skinny/fit people over fat people is a social construct. Even if that were the case, you're not going to change what people find attractive by telling them what is attractive. People were never told to find fit people attractive, we weren't told to find big boobs attractive, we weren't told to find certain hairstyles attractive. These things just kind of happen on their own. How these social constructs happen are incredibly complex. It's certainly not just a matter of telling us what to like or dislike.

Secondly, what's the end goal here? To make fat desirable? Do they want people to *want* to get fat? Because that would be the logical conclusion here. If fat is beautiful, and people want to be beautiful, then logically they should try to get fat. Should we really be encouraging obesity?

If the goal is instead to make fat people also feel beautiful in their own bodies, then sure that sounds noble. But you're lying to them. I get that we all deserve to feel good about ourselves, but at the same time, words like "beautiful" or "brilliant" or "strong" are meant to highlight the exceptional. If you see someone lifting 5 lb dumbbells, you're not going to think "oh my god look how strong he is". If any amount of effort is considered "strong", then "strong" loses its meaning. The same is true for words like "brilliant", "amazing", or in this case, "beautiful".

Suppose you manage to convince people that some fat people are beautiful. You might point to a fat girl with beautiful eyes, flawless skin, great hair, and a pretty face and say "she's fat and beautiful". Great, but only because of all the other pretty features she has. She's still not beautiful *because* she's fat, she's beautiful in spite of it. Does that make it any less shallow? What about fat girls who don't have pretty eyes, flawless skin, and a pretty face? Don't they also deserve to feel good about themselves? Are we going to start #acneisbeautiful or #lazyeyesarebeautiful until everyone qualifies as beautiful? Because at that point, if everyone is beautiful, no one is. We might as well just scrap the word. The whole point of the word is to highlight that someone is exceptionally aesthetic.

Instead, what people should be doing is convincing the world that there's more to a person than beauty. So instead of telling us how beautiful fat people are, why not try to convince us that beauty is less important? I'm far more likely to take you seriously if you try to convince me that a particular fat person is smart or funny or witty, but telling me they're beautiful is just a flat out lie. Sure, some people are into that. But the majority of people do not find obesity attractive. Telling us it is isn't doing anything to change that.
gpt
The *real* message is "being fat doesn't preclude you from being beautiful", but that's *way* too long for a hashtag. 

I think you're reading *way* too much into a pithy saying.

Connotation, not denotation... and language uses metaphors all the time.

You're also *way* overstating the "superlativeness" of "beautiful"... it's just a garden variety compliment, it doesn't mean you're a 10.