With regard to WAR- many other groups do not condone violence and are conscientious objectors NOT just the witnesses.
As for preaching, well...look at this
2013
Total hours in field ministry- 1, 748, 697, 447 ( that almost 2 billion hours people!)
Total baptized- 268, 777
S0, that means a total of 6505 hours were spent on each person baptized...if you equate that to full time work, that would be over 3 years of full time effort for 1 person!!!
Obviously, if they were really concerned about bringing people into the "truth," they would find a much more productive and effective way to do that. Because, as the statistics show, it isn't working well. The mormons, for example, don't require all their people to preach, yet, they are growing much quicker than other religions. Mainstream christian groups don't require ANY preaching, yet they are growing leaps and bounds!
Now some out there will say, "well, look at how many bible studies they had." My response, bible studies is not what they are after...they are after converts, so the total hours spent should only apply to "results."
Just some thoughts,
SOP