I am sure there is research on that. It’s unlikely to be women sticking together against men. That’s a sexist assumption even if you don’t realise it. Socialisation and teaches men not to be sissy’s and to suck it up. Their ability to form close personal relationships is often compromised. You are welcome to expand on men’s emotional and relationship lives (outside their domestic relationships
Women tend to create friendships that are supportive and caring. They congregate. Men are NOT relevant to that however much you’d like it to be so. There are opportunities for Jen to engage in connection with women without their needing to be sex evolved but my observation is that men tend not to take them
your second paragraph is your opinion but men sometimes have ki idea about their own behaviour and how it appears