Why is there a perfect man standard applied everywhere?

humayun500
I am 5'4 with 7.8cm penis, and I have lost dates and relationships with girls because "I'm not man enough", on the other hand I and the rest of men accept any type of women tall, short, boy chest, obese or even manly ones.

I have dated girls without putting any of my standards in front of me, I even dated this overly obese woman which was my biggest mistake because not only she was rude and assertive but also sex with her was terrible because my penis couldn't even reach her vagina she started to cheat on me a lot and even though I knew about it I ignored it and yet she broke up with me.

So yeah that technically makes me a virgin, and all my friends have already lost theirs which made me into that loser friend.

Why are women like this? I never judged a woman based on their looks and yet they treat me less manly than they should. This is more about body shaming men.
Why is there a perfect man standard applied everywhere?
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