Yeah, it was similar for me (only Catholic churches in my case), though politics were usually homogeneous per church (what I mean is: whether you leaned left or right, you'd find a Catholic community to welcome you, but I'm not sure it'd be easy to find one that would comfortably welcome wide political views). As for sexual orientation, this was not common at all, but bear in mind the last time I attended Church was in the early 90s so things may have changed.
> I agree. It does happen at work anyway though so I put less importance on this as a requirement for third spaces.
I think the main difference of a third space vs work is that, at work, we're forced to "put up" with people we wouldn't normally engage with, because we all have the common goal of making a living, while in a third space, even in one with a common goal like the repair meetups I mentioned, you go there voluntarily and not because otherwise you can't put food on the table.