The answer becomes obvious when we ask the following questions.
What would the world be like without lying, theft and murder?
What would the world be like if everyone was honest, fair, and kind?
God hates our sins because he loves us.*
* Sin does more harm to the person who sins, than the person they sin against. It is one thing to kill the body, it is another to destroy ones soul.
So why do we sin? See Being Saved – The Ontological Approach by Fr. Stephen Freeman