I hate that attitude.
Criticise women for hitting more unforced errors per winner if you like, as that is a controllable aspect of their tennis. But if you have a crack at them because they don't hit as hard or run as fast, then you've missed the point.
Additionally a lot of players in men's tennis could learn a thing or two from a few women's players with regards to how to fight when the pressure is on and you look gone in a match. Novak, Tsonga, Ferrer and Blake, among others, are not even as close to as mentally tough as Serena is, or Martina and Graf used to be.