What is a flashback?

a. an object or sensory experience that triggers memories
b. a device in which the story opens and ends in the same moment
c. a point in the story that shows something that happened earlier
d. a sudden moment of realization or change for a character

C.) A point in the story that shows something that happened earlier because you don't need an object or sensory to have a flashback, but that that object could remind you of something that happened earlier.

There is nothing inherently wrong with being gay. speaking generally, opposition to gays are usually judged on people's moral basis whether it be religion, experience or other factors. to conclude, there is no objective answer to this question only subjective ones that rely on people's idea of what is right and wrong.