What? Sorry, but just because they "don't believe in God" does not AT ALL mean they are not at war against Him. You apparently don't realize the unseen (i.e. spiriutal) forces at work in our world and in the people who embrace darkness.
IMHO, they are at war with their own inner God-given spirit. They know deep down that God created them. They feel guilty about their choices and they demand affirmation from others to rationalize their state in life. Unfortunately, they don't like who they are for boundless reasons, or how God designed the world (He created them, male and female). They are at war with themselves and anyone else who speaks the truth from the Bible with regard to the abomination that is homosexuality. The anger and venom that is emoted by them is due to their own inner guilt and struggle.
Hence, I would agree with the author: They are at war with God, not the believers who are voicing God's word.
Many peoples died in the lastest wars, without even knowing they were in a war.
Your, and my faith is built on God’s Word. Unbelief is the greater sin such as:
“For God sent not His Son into the world to condemn the world, but that the world through Him might be saved. He that believeth on Him is not condemned; but he that believeth not is condemed already, because he hath not believed in the name of the only begotten Son of God.” (John 3:17-18)
“He that believeth on the Son of God hath everlasting life; and he that believeth not the Son shall not see life; but the wrath of God abideth on him.” (John 3:36)
“But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through His name.” (John 20:31)
Just because they do not believe in God doesn’t mean they are not at war with God. Their homosexuality is only one tools they have in the fight against God. Most assuredly they are also evolutionists, and it always strikes me as funny that the homosexual betrays the evolutionists creed and defy natural selection. By the evolutionists standards homos are less evolved since they could not naturaly procreate.