We all hate someone or something or some idea. The Bible says
"Thou shalt not hate thy brother in thy heart". Buddhism names
Three Poisons; greed, hatred and delusion, and warns that hatred can show up as anger, hostility, aversion, or ill-will.
St. Augustine was a little more pragmatic. He said:
"hate the sin, but love the sinner".
Hatred is normal, possibly even necessary, so long as our hatred is not misplaced, and it doesn't drag us into anger and hostility. We must not just hate
all Wiccans, Muslims, Hindus, Christians or Jews because their beliefs differ from ours. We must not hate any individual because we have
identified them a certain way; homosexual, asian, black, white, catholic, protestant, rich, poor, etc. But we can hate a friend who has betrayed us. We can hate a specific enemy who is out to harm us. If we are able to, the best way to hate someone is
damnatio memoriae; Do not even dignify them with our hatred.