I was hoping someone else articulated this better than me. When I read OP's screenshot, I heard "Your dick got hard when we showed you sex. What are you, gay? You're gay, aren't you?" Which doesn't really follow. Thats just bullying, I think. The scientists were bullying the homophobes lmao.

And, like, they're probably sometimes correct. I conject homophobia is a mask worn by homos to blend in around homophobes, and then the paper you linked hits me with

These findings confirm the importance of considering the variability in impulsive processes to understand why some (but not all) men high in homophobia have homosexual interest.

and wow, this really does confirm my bias! Thank you for sharing