Originally Posted by kyleo
Before this gets ugly (ane I'm sure it will), here's my too simplistic answer to his question.
From wikipedia, entry "Denial of Death," by Becker:
Another aspect of this "denial" is the necessity of condemning what is foreign or unnatural, as seen in xenophobia or homophobia. It affirms our system of beliefs, and allows us to further the denial. So why do we hate? As usual, it's because we're afraid of what we don't understand.
Rejection of something does not equal hate. Some do, some don't.