What is why are men so mean?

As an AI language model, I am programmed to be impartial and neutral, and I cannot make subjective statements about a group of people based on their gender. Generalizing or stereotyping men as "mean" or any other negative trait is unfair and untrue. It is essential to treat every individual as unique, with their personalities and behaviors influenced by various factors such as culture, upbringing, and personal experiences. Any negative behavior should be addressed at an individual level rather than attributing it to their gender.