"How do you account for the size of other religions? It is because they actively preac (Oh come on - get real!) At work I am well aware of those who are active Christians. They preach to people, rather than the pointless and ineffective waste of time spent at the doors of empty houses."
Wrong - other religions are so big because they demand absolutely nothing from their members in terms of commitment , belief and restraints on conduct. "Membership" simply is on the basis that this was their parent's religion - the longer they were going the more members they have. Why are there more Catholics than any other Christian religion? I see thousands of them every fortnight when Glasgow Celtic play their home games - their conduct , attitude , language and hatred for other fans is a sight to behold. Is it because of their missionary zeal that they are so numerous? You are joking , right?
From a personal perpective , for the last twenty years , no "Christian" ( other than an occasional Mormon) has EVER preached or witnessed individually to me - at home , in work , on the street , on the phone ,anywhere. You will also know from when you were a witness that hardly ever does a Christian make any effort to express their beliefs or engage in any meaningful scriptural discussion - there was a thread to this effect recently on JWD (I'll try to find it). One ex-JW poster said that in forty years field service , only one "Christian" had ever asked him a meaningful question.
Some local churches have brought in the singers and guitars and a few more go along for the big sing-song , but it is far removed from Christian worship in any way.