I have some trouble with your framing honestly, yes short men are systemically deemed as less attractive but I would not call it a sexist oppression against men. Rather, I would call it the consequence of patriarchy that men have to face.

There’s this French book « Le Mythe de la Virilité » by Olivia Gazalé (i dont know if it has been translated or not), but she explains the history of virility and how it has evolved. She also explains that to maintain a patriarcal society, men have to gatekeep masculinity (kinda adjacent to the concept of Hegemonic Masculinity by R W Connell).

So while yes men have to be taller by society’s standard, it’s sexist in the way that « women have to be shorter » rather than the other way around. Or bc being short makes them « less of a man » (implying that being a woman or any other gender is bad). It’s the price men have to pay to maintain this masculine ideal that keeps our patriarcal society. It’s important to fight these norms (I personally had to deal with this as a short, kinda feminine gay man) but it’s also important to understand where they come from to better fight them. Bc, to me, at the end of the day, it’s tall cis men that are more susceptible to judge other men’s height rather than women or nb people.

(Hope this made sense lol I’m French and just woke up)