To flesh things out a bit, I would ask a couple questions: Where are these guys located? Urban or rural areas? And what kind of Christian thinkers/communities are they looking at? My guess would be that they are not urban, and that they are looking at conservative Christianity. As other commenters have noted, there are some strong currents for social justice in some styles of Christianity, especially liberal denominations, Liberation Theology, etc. These Christian strains have often been side-by-side with secular groups pushing for women’s rights, civil rights, and economic justice for workers; and their goals are often secular and urban in application, pushing for legal and government action to improve all people’s lives. This ‘liberal’ Christian style (think Unitarian Universalist) is a world away from conservative Christian groups and thinkers that are decidedly non-urban and non-public-sphere in their focus. For these ‘conservative’ Christians, the name of the game is always highly personal and familial, with private morality and behavior as the key religious concerns.

When some men say that Christianity gives them guidance in a language they understand, I think they’re referring to these conservative teachings on personal and familial behavior. As the economic and social support structures in rural areas atrophy and collapse, superfluous men are left flailing around for something to do, somewhere to belong to, someone to commiserate with over their struggles and confusion. Conservative, rural Christian groups step in and fill the void, providing a full explanatory universe for the travails of the (rural) virtuous, amidst an evil (urban) world that has left them behind. This, unfortunately, then grafts easily onto political polarization, white supremacy, Jan 6th style insurrection, etc.