The same can be said about any religion.
Very true, and this is probably why Zen gets confused as a religion--that, and people who think that it is merely another name for Buddhism.
A better explanation of what I said earlier about "Zen not being a religion," is that Zen does not resemble Western religions. It does resemble Taoism, and Buddhism, but you don't have to believe in Buddha or the Tao to practice Zen faithfully, among other differences.