Does God hate demons?
No.
That is a tough question, but considering the agony, torture and misery they will endure, I do not know. As I said, it is a tough question, even if it is a rhetorical question.
From my reading of the Christian Bible, hell is at best a permanent separation from God in some profound and deeply tragic way--but necessary in regard to the eternal choice of the beings there to reject a relationship with God. At worse it is a place of intentional eternal vindictive torture. I tend to the first one in both my sensibilities and my reading of scripture. I will not deny that there is some frightful language in the Book of Revelation about an eternal lake of fire, but there seem to me more and plainer less vision-like occasions in scripture where the final state of the dammed is referred to simply as death, eternal destruction, and being the alternative to eternal life--which are not very consistent with a state of eternal temporal awareness in which one is tortured. Jesus seemed to describe it most often as being cast out into darkness where there is weeping and gnashing of teeth. Regret. Missing out. Shut out. But the only time he seemed to describe it as a place where some physical torment occurred was in the parable of the rich man in a parable...with a tongue that burned who wanted to warn his friends. I am dubious that the point of this parable was to teach the doctrine of hell, its punch line was that if the rich man's brothers would not be convinced by Moses and the prophets, then neither would they be convinced by someone returning from the dead.
Thus with my reading of the doctrine of hell, I find it easier to accept that God would make creatures of free will including those He knew would go bad, and that although He regrets deeply their choices which will lead them into separation from Him, still for whatever reason He thought it good to at least give them a shot at life and existance.
“Does God Hate Demons”
God is not capable of hate, for God is love. However, demons are fallen Angels whom God created. The followers of Lucifer were cast down from heaven when Lucifer was banned from heaven for his ‘desire to be God’ and be worshipped....sound familiar?
Anyway, as we destroy the terrorists in war/execution, and evil people through capital punishment, those demons leave their bodies and seek refuge in other haters, thereby increasing our problem.
None of what is happening is God’s fault, because all have free will, including Angels...to choose to serve God or not, it’s one of the universal laws. The consequences of allowing choice is simple, since Lucifer (Satan, Devil,Belzebulb or whatever one wants to call him)can never repent and be saved, as he saw heaven and was the most powerful Angel of Worship, the evil in him wants to take as many to hell with him as he can.
No, God does not hate demons, only their behavior.