Each belief of the watchtower society is carefully crafted to create an us vs them mentality. By causing members of other christian churches to seem like the "other" their attempts to evangelize the Witnesses can fall flat. The other in this case being relegated, as in many cases historically, to that of a demonized position. Consider these beliefs:
1...Michael dying on a stake instead of Jesus dying on a cross. The instances of christians believing the JW position is almost nil. Even in cases, however rare, that an organization believes in the stake position instead of the cross, they most certainly won't accept the michael theory. This is an immediate and easy red flag for Jehovahs Witnesses then that requires no effort on the part of their leaders once the doctrine is accepted. Visit someone else's congregation and the sight of the cross will immediately cause the Witness to dismiss the person and their congregation as being members of Satan's system, false worshipper, thus satan worshippers.
2...That is assuming the witness would accept the invitation to the person's congregation. Imagine a sunday meeting, and a member from another congregation approaches a witness and invites the witness to visit his congregation next wensday. How excited the witness would be. Now take the same invitation and use a slightly older version of the word congregation, "church." Instantly the person and their belief is demonized.
3...Birthdays, Christmas, Thanksgiving, Flag Day, Memorial Day, Samhain, Mother's Day. Satan inspired, controlled and run. Attempts by christians, false christians, to lead true christians away from Jehovah's Visible Organization. Friend's Day though is ok. I know some of you will say friend's day is like a birthday, but it isnt. For instance it usually occurs a couple days before or after ones birthday. Second the presents are not required, unless you go to the party, of course. Anniversarys are ok. Please do not do as I did and request not to be given a graduation party, or to receive graduation gifts. Because those are ok.
4...Door to door being the keystone of the preaching work. Seriously? Does anyone really believe that this man-god-son-of-god-fable actually had to go door to door to get folks to listen to him? The dude who healed thousands? tens of thousands? raised the dead? He needed to knock on doors? Now knockin on doors is cool. I had lots of fun doin it. But that isnt a mark of a true christian, compared to a christian say who runs a mission? Or another who assists with a youth group? Which as we all know is in itself a sign of being a false christian, a part of satans visible organization.
5...Marraige or dating outside the group. Ghastly.
6...Are the Adam's family really that bad? If you do not think so, just watch the reaction of a child raised as a witness, even before baptism, when asked to watch it or something similar at a school mate's home.
Each belief, designed to create an instant emotional reaction, an intense apprehension of the other. Thus demonized, proper conduct, understood to mean remaining in the group and under its control, is assured.
The history of the cross has its roots in pegan crap and I don't suppose, just as the WT points out, its use in worship brings any glory to God.
Of course the history of the cross is pagan. The entire christian myth is a rehashing of far more ancient myths told the world over for thousands, perhaps tens of thousands, of years. It should not be expected then that the fable borrows from other fables?