I think what the meme is trying to say is that a superhero with a prehensile, tentacle like penis is setting unrealistic body expectations. Given the tongue in cheek nature of such a claim, and the photo chosen (bottom left of the meme) I’d imagine it’s partially a satirical jab at the kinda person intimidated by Chris Pratt’s abs (as well as just a self-acknowledged shitpost).

But some of the chat in this thread defintely demonstrates that some folks (mostly m’en I’d presume?) don’t seem to understand the vast difference between body image expectations for men and women in contempary culture.