This isn't so much a reply to J7 as it's reading over J7's post I see something I have to reply to:
Curious Judaism, Shintoism, Zen, and others (like political beliefs) didn't make it onto that list.
Perhaps Buddhism has qualities which rival religiosity which make it understandable, but the statement of it being a religion is incorrect. It is a philosophy and a way of life, and is compatible (or at least can be) with religions. Both objectively and in my personal experience, Buddhists don't worship him as a God, but rather Bhudda means 'elightened one' or 'one with highest enlightenment'.
There have been Christian and Moslem Samurai.
Shaolin teachings originally came from Bhuddist monks, their ways are compatible with religions like Christianity and Moslem too.
Zen, like Buddhism, is much the same in that regard. It's (in summary) about balance and concerns itself with the actual, with what is.
And don't forget atheists can practice Buddhism and Zen as well!
Also, anyone who thinks Buddhism is just all about peace and pacifism are very very naive about just what extremes the Yin-Yang covers. I'd suggest a trip to visit the world tree in person--then
come back and talk about it. I'll just leave it at that.