Reasons are manifold. Primary i think is the feedback mechanism. Women don’t like something, they complain and cry, and things get better. They realize their complaining does improve stuff, many times if not all. So they talk about the issues, about what they feel, and somehow get the solutions. Some fluffer somewhere would help them out.
For a man, the feedback loop is different. It’s not just perceptions, not that weak men are unattractive, but men don’t share among other men either. Cos they don’t find solutions this way, things don’t get better when they talk about it. So they don’t.
Regarding therapy , many men have tried it, it doesn’t work for them. Most therapists are well equipped to deal with a woman not man. The conversations need to be different. For women it is usually about what others think of them, for men it’s mostly about helplessness and making rational sense of the world. Hard to have those convos.