Alright, everybody's got their own opinion. Said opinion is there for a reason, and is generally unshakable, so it's pointless to try to make someone else believe what you believe. Just respect their opinion, but don't 1) Judge 2) Critique 3) Enter into/start a discussion 4) Take a side 5) Spam 6) Troll 7) Flame 8) State your opinions in a way that would be considered antogonising 9) Blatantly tell someone they're wrong 10) Last but not least, never openly state that you hate anything, any idea, person, or belief.
Follow these rules, and you too can be a nuetral party in a discussion about beliefs, people, and ideas!