There is a new project in the Catholic Church to keep Catholic men in the fold. Their data shows that when fathers are included in a family’s commitment to the Church the more likely children remain Catholic.
The Catholic Church found that between 11 million and 15 million adult men have left the church. Men are only 1/3 of attendees at mass.
About 60% of Catholic men are considered “casual Catholics.” These are men who are considered not knowledgeable about the faith nor practice it. Four out of ten Catholic men do not think the Catholic faith has any more truth than any other faith. A large majority doubt they will stay in the faith.
The Church, of course, is aware of these numbers and believes it can turn them around. It has developed a special mass for men. Some priests, about one in five, and better at adding men to congregations and these will be given more responsibility.
I’ve not seen these kinds of numbers for Protestant groups. My impression is it is about the same.
My experience in atheist groups has shown just the opposite. I think about one in five attendees at regularly scheduled atheist meetings are women. The number seems to be growing a little. In general, few atheists of any gender join or attend atheist groups.
We can’t know what the future will bring. My guess is it is not a “man problem” but a religion problem. Religion needs to reflect views in society.
When the Catholic Church becomes modern, men may return.
[A link discussing this issue can be found in comments.]