Okay, now you're just being silly.
When the Bible says "made in His image" it doesn't mean physically. It means with His thought patterns and action patterns. God is not a man. He is a Spirit. Hence the word, "spiritual". The word "He" is referred to as the masculine "father" figure. He is our Father, but yet is not a man. Again, we cannot understand God. And, to think that we've figured him out is a lie that we've just told ourselves.
You basically said the following above:
1. God makes all people in his image.
2. God is not gay.
3. Therefore, all humans are not (inherently) gay.
You basically directly asserted that humans' lack of "gayness" comes directly from God's lack of "gayness". So would it not logically follow that other facets of humans also come directly from qualities God possesses, such as personality, appearance, etc.? And if not, then what is so special about sexual orientation?
Also, if God is spiritual with no corporeal form, then how can one even say anything about his sexual orientation? Doesn't one need, you know, potential sexual interests before the concept of one's sexual orientation becomes at all meaningful?