I ran across this a while back, but it bares repeating. It is not homophobic to be disgusted by seeing homosexual/sexually immoral behavior. Lost people will infer that there is some learned bias, that causes the same disgust response. They will interpret the data through their own deceived, lying eyes. We see that God has given us a conscience, and that they have been conditioned to see it as anti-gay bias, but it is actually good. It demonstrates your conscience hasn’t been shut up by lies yet. It is good, and natural for you to be disgusted by perverts behaving like perverts. We are not homophobes. We don’t have an unreasonable fear of homos. We are simply disgusted by their perverse behaviors, and affects. We could just as easily accuse them of being agathophobes, or being phobic of moral goodness. They need to hear the gospel of Jesus. They need their eyes opened to the truth of how they are being destroyed. They need repentance, and faith.

https://www.researchgate.net/publication/317114349_What_do_two_men_kissing_and_a_bucket_of_maggots_have_in_common_Heterosexual_men’s_indistinguishable_salivary_a-amylase_responses_to_photos_of_two_men_kissing_and_disgusting_images