High heeled footwear were originally sex neutral and it's only really in recent times that they've become connected to the female sex - it's like skirts which are far more suitable for male-bodied people than female-bodied people due to their respective anatomies.
Personally, if the clothing/footwear are designed to complement the features of the wearer, then there should be no problem. If these young men want to wear these death-traps, then they should be available in mens sizes. As for myself, I'll be staying with my UK size 12 trainers, thanks.