Because I enjoy an ocaasional drink (note: I said drink, not drunk), and I dance with my wife on occasion, and I enjoy wholesome movies. I personally don't believe those things are neccesarily sinful.
You probably don't really belong to much of anything.
As a matter of fact I belong to a church in which I am quite active. Apparently you haven't noticed that I spend a good part of two threads defending the church in this article, or else you wouldn't jump to conclusions.