Why does God hate homosexuality?

General Answer

God does not hate anyone.

Christian Answer

God does not hate gays. They are gay because of sin, which causes imperfection, we are all sinners and imperfect. God hates the practice of homosexuality. It's a matter of immorality. It falls under God's standards of fornication which applies to all who practice sexual relations without the benefit of God's arrangement of marriage between a man and a woman.

According to Genesis, God's purpose for the mankind was to be fruitful multiply and fill the earth. Only a man and a woman can produce offspring.

The practice of homosexuality is an abomination in God's eyes and all who practice such things will be destroyed in the coming war of God's great day at Armageddon and nothing nor no one will be able to prevent this great war that's coming upon the entire inhabited earth. God hates all who practice immorality, not just gays.