The Mercedes as a car or the Mercedes as a company does not condone the killing of people because of their beliefs in the validity of a car, where as many organized religions will kill a person for simply doubting the validity of their beliefs.

The only validation one can offer for religion is that it makes one feel good. Don't try to justify or validate religion. Religion can not be proven as anything more than a compilation of historical facts and folk lore. Those that believe in polytheism, or Buddhism, or Confucianism, or Rastafarianism are no less likely to get to their heaven than are christians. But one thing I am sure of is that those that believe in religions other than christianity will get there with a lot less guilt than christians.