Evil is as evil does. There are no excuses for evil and it must be hated. Without hate what is love? Reason why we in the mess we in today is the love your enemy gimmick. I think some pop singer once said love is just a four letter word. I love myself and since God created me by loving myself I am loving God.
As i mentioned,you can look at evil as selfishness.The more selfish someone is the less it is concerned about others and everything else around it.
Love is on the other side of the spectrum - unselfishness. When you care about someone else more than you care about yourself,u can say you love that person.No selfish motive is at play,u dont seek to make any proffit or get any service from that person ,aka unconditional love.
You should be selfish about one thing only and that is the state and faith of your soul.And best way to do it is to be unselfish..
I guess everyone have a different level of understanding about "self" - what they are and why they are and what they should and should not do etc...
Like i keep saying,we all have this materialistic self and spiritual self.If u want to prosper in materialistic world then easiest way to do it is from expanse of others ,aka being selfish.From spiritual perspective ,if reincarnation is real or afterlife,then being materialistic and selfish doesnt make much sense.Might pay off temporarily in physical realm but in spiritual realm it will just damage your soul.
Some native american tribes liked to live in their longhouses,all village together under one roof.And they liked to say that the world is one big long house - everybody and everything is one big family.Some family members might be assh***s and up to some weird sh*t but you should try not to hate them for it.
Native americans ofcourse didnt have that problem.They had their medicine priest or shaman who looked after the tribes mental and physical health.Something we are missing these days..