Why is there hate in this world?

Question:

You would think that such precious life would be carefully nurtured, yet people still have HATE in their hearts. Is it because of over-population and mass media delusional imagery that we have become lost in the illusion we created and that this illusion breeds hate and fear, when we can live in honest love if we just had the capability to escape this illusion? Who created this illusion, why did he/she/they create this illusion, and what do you call this "illusion"?

My Reply: 
I was reading through Matthew 13 today, and believe that one of the parables Jesus tells can help understand your question.
He mentioned in verses 24-30 that "The kingdom of heaven is like a man who sowed good seed in his field. But while everyone was sleeping, his enemy came and sowed weeds among the wheat, and went away. When the wheat sprouted and formed heads, then the weeds also appeared.
"The owner's servants came to him and said, 'Sir, didn't you sow good seed in your field? Where then did the weeds come from?'
" 'An enemy did this,' he replied. "The servants asked him, 'Do you want us to go and pull them up?'
'No,' he answered, 'because while you are pulling the weeds, you may root up the wheat with them. Let both grow together until the harvest. At that time I will tell the harvesters: First collect the weeds and tie them in bundles to be burned; then gather the wheat and bring it into my barn.' "

My original question during my study was, "who are the weeds today?" But your question gives the answer, for there are bad people in the world, planted by the enemy, and they sow hatred.  And because the Lord has chosen to wait until the end to separate the bad from the good, we have to deal with people who spread their hate.
---Pastor Andy