Go and volunteer at cool organization. I don't know where you live but most cities have a couple of organizations that are with it.
Start with hacker spaces.
I'm not a believer myself, but having worked with those people over many years I can tell you that's a pretty shallow view. The people I worked with where all honest, hardworking individuals who really tried to live their values.
Much easier to call out a group that is "good" that they are "bad", when in fact the "bad-ness" gets spread equally around people whether or not they are in this "good" community.
If they can't even manage to better people as part of their church than the average person is then what good is it other than creating cliques and an 'us versus them' mentality?
I say this to protect churches and other good communities.
but the churches we are talking about are religious organisations that claim a monopoly on morality.
The whole (claimed) point of their existence is to preach, convert and forge people into better, more virtuous versions of themselves.
If it is failing even in that one simple premise, then what good is it?
So, to that end, let's ask ourselves - why don't we find churches interesting? Are they boring, are they full of ceremony? What's the point, we might ask? Do we have other "better" things to do? Do we not trust they are authority on morals, or do we not care about becoming more virtuous?