I'm thinking about becoming a UU, but I am not sure it's the place (religion?) for me. It seems like a lot of people are into social justice, taking it too seriously for my tastes. Do most UUs really believe that they are changing the world - and that it is super important - when they do social justice stuff, or do they just do it as the natural consequence of their values - like it's "no big deal" to them and they just do it to sort of put on a show/for fun?

Or should I, instead, keep trying to convince myself that I can literally and truly believe in the Mormon teachings without literally believing in them and therefore acquire a nice community this way?