I think it might be his most unfortunate physical feature of many unfortunate physical features. Obese guys with double chins aren’t exactly unusual, but this is particularly grotesque, almost disproportionate. And it totally undermines any look he’s going for - you can’t look like a lean, mean super soldier with a neckbelly like that, no matter what you wear, what you get tattooed on you or what expression you pull. Combined with his derp eyes, literally the only identity he can pull off is “special needs adult.” His body will always betray the truth.