A girl who has been sexually abused by a male in her youth can be psychologically scarred resulting in one of several possible outcomes. She can become frigid and abstain from sex. She can go to the other extreme and become very promiscuous. Or she can be revolted by men and become a lesbian.
It does not follow from this that ALL lesbians are lesbians due to some twist in their psychology!
This is what is known as an inductive fallacy.
Here is an example of an inductive fallacy that may make things more clear:
1. Having arrived at
www.politicsforumpoliticalworld.com, I see someone post a pro-choice topic.
2. All posters on
www.politicsforumpoliticalworld.com are pro-choice.
Just because there are homosexuals who are homosexual due to some psychological defect, it does not mean all homosexuals have a psychological defect.