"Drop in social benefit and influence?" I don't follow. Clarify?
I'm talking about real-world benefits of belonging to a church. Things like:
- UU churches tend to be small and often have part-time ministers. Many are closed most of the time. OTOH, in the US, Christian churches are often large and have something happening every day: men's groups, women's groups, youth groups, Christian singles intramural volleyball leagues (a real thing at a church near here), etc.
- Also because of their smaller size, UU churches often (but not always) don't have the social services that many Christian churches have: addiction support groups, food banks, etc.
- Christian congregations often draw from a small geographic area (for small to moderate congregations) or make up for it by being absolutely massive (megachurches); in contrast, the small size and small number of UU congregations means that their membership is spread out at much lower density than a typical Christian congregation's membership is. Because of this, networking as a member of a Christian church is a lot more likely to result in a job, business deal, etc., than networking in a UU congregation.
- A Christian is often likely to have family and friend connections in a Christian church. Staying in that Christian church would help to maintain these important ties.
- Christian groups tend to be much larger voting blocs than UUs are and much more effective at lobbying than UU groups. As long as you can find a congregation that matches your political viewpoint, you'll have more political influence as a member of a specifically Christian congregation than as a member of a UU congregation.
These are the sorts of things I was thinking of.