It's not that their fictional, it's that they barely resemble real men at all, and the artists and fans of that stuff don't use real men as a template for it.
That's exactly how sexualization works. Look at sexualized women. None of them look like women real or act like it. It's pure sexual fantasy set aside from reality.
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u/Successful-Cup-8557 11h ago
Yeah, but the men in that are so far away from real men. It's not really "sexualizing men".