Individuals who identify as straight but in psychological tests show a strong attraction to the same sex may be threatened by gays and lesbians because homosexuals remind them of similar tendencies within themselves.
Those people who have such discrepancies, who have really a split between their unconscious attraction and what they consciously say about themselves, are more likely to come from authoritarian homes.
If you are a parent who really believes your child should be straight, and when you use whatever means you can to convince them them that they’re only good and worthy if they are, that would be very controlling and it creates a lot of conflict in the child.
