It's an awful thing, hatred, isn't it Old Sage?
Hatred is a spiritual disease of the worst kind. It can be fatal if not controlled and eliminated.
Yes. Anyone dying with hatred on his or her soul can expect to go to hell or spend a long time in Purgatory.
There is no doubt of that, for hatred is the opposite to love which is Christ's Commandment. Indeed, Christ states that love is the summary of all Commandments. On the contrary, therefore, hatred is the summary of all evil.
It seems like a cancer of the soul to me. It eats away at a healthy soul and consumes it and the person becomes a victim of this cancer, possibly even to eternal death.
A horrible thought. However, God gives us the Grace to overcome this evil as long as we make a valiant attempt to rid ourselves of it.
Some people have said that they hate the devil or hate evil, itself.
I would suggest that even that be expelled from our souls. Hate nothing, not even the devil.
With that I fully agree. Hatred is just too dangerous.