You make a valid point, but it isn't nearly as bad as it is for women. For example, it's extremely rare to have female characters that don't fit some obvious trope and have, you know, actual personalities.
Many games suffer from "Smurfette Syndrome", where they have one female character among an ensemble cast of males. She almost always tends to have "Female Personality Disorder", i.e. dresses in pink, is a bit bratty or sassy, or fits some other lame sterotype. Many of them are just female versions of male characters, or little more than prizes that get kidnapped at the start and deliver the Smooch of Victory when the guy saves them. Of course many of the male characters will be paper thin too, but at least they get a bit of variety and have attributes other than "is male".
There are also quite a few reasonable male characters in games. Half Life comes to mind, where you play a middle aged scientist. Even in games like Call of Duty and Battlefield the males tend to be realistic for trained military men, even if they are stereotypically butch. It's not perfect, but it isn't nearly as bad as it is for female characters.