I’d quite forgotten about force.
I see a lot of activism that is carried out by groups which, if not specifically secularist, are not explicitly religious, but this tends to be single-issue stuff. Religious communities, in my experience, tend to teach on or examine or respond to every aspect of life (though it is debateable how successful most are, as there is nowadays the problem of people leaving if they don’t like what they hear). Are there secular movements which attempt to be so all-embracing?
As a theist, I don’t believe in God because I perceive some positive benefit from that belief. My experiences and perceptions point to the existence of God. Of course those experiences and perceptions may be inaccurate and are subject to my own interpretations, so I can’t claim that my beliefs are rational. I accept on an intellectual level that my belief could be wrong. This doesn’t seem to enable me to stop believing.
However, I am involved in a religious community because there are positive benefits—chiefly that of being able to compare notes with other people who share my irrational belief in God and my desire to do good work in the world. I can see that there might be positive benefits in religious communities for non-theists, though I don’t really see the point.