There are plenty of people with good love in their hearts, that somehow find themselves hating others or other things, perhaps when they are mad, or perhaps as a matter of course, as they "hate the sin" but not the sinner, and so on and so forth. The thing is though, those that truly love do not have any hate in their hearts, for love eliminates all hate, and there are not any exceptions to this rule.
When people do wrong, or wrong actions happen, or someone is thinking wrong, in which, all of these things are indicative of destruction and evil, if, when you ponder upon these things, hate wells up inside of you, then you need to take a careful look at yourself and who and what you really are, for hatred directed against another, will not only seldom correct a wrong, but in most cases will surely add to the negativity to all that has been created, and make you, the hater, a lesser person than what you should really be.
Of course, there are many people, that believe that righteous hatred is good, because it drives and motivates the person that has this particular hate, to strike back at those that are evil and to thereby make the world a safer and more just place, which is why there are so many that subscribe to the "eye for an eye" philosophy, but in the land of the blind, who will be left to see, except those that are absolutely convinced that they are the righteous ones, and all others are not. This type of self-serving philosophy is especially pernicious because those that believe that their actions of good retribution through their hatred that overcomes evil is actually doing good, makes for a world, in which, forgiveness is always by the sword, and never by the heart.
If, in your heart, even without taking overt action, you hate someone or something, you are not right for having that hatred, for love and hate are not compatible, so that, those that hate, do not love, or at a minimum, do not love fully, completely, and entirely. For, only in complete love, does hate have no place whatsoever, so that, having that love, you are able to always reason and to adjudge in a manner that bespeaks of someone that is in control of their emotional and psychological makeup, rather than someone that is overcome by the burning desire of retribution and revenge.
There isn't any good point in hating anyone or anything, for wrong is wrong, and hating that wrong, will never make it right; whereas, through love, and through the positive constructive process, one can try to channel that hate, and hateful people, into becoming better people, themselves, and this is best done by the application of compassion, empathy, and love, as opposed to punishment, retribution, and hate.
Everything here on earth, comes from the Creator of this earth, as it is the Master's handiwork, and if we hate the creation, or certain acts that those that have been created have done, then, in effect, we don't love God fully, for we hate the parts of God, so created, that we do not approve of. Our hateful attributes are not in keeping with love, for love, has no room to hate, for any hate is not part of God, for God is entirely love, and no other, for a house divided cannot and will not stand.