Yup. I didn't agree with Gore Vidal on too many things, but he never liked being called a homosexual. He thought it was improper use of language. He made the point that you canot BE homosexual and you cannot BE heterosexual. What you can do is enagage in either homosexual acts or heterosexual acts at various times in your life. It's all about the behavior.
This completely raises the topic of free will, personal change, and lifestyle choices. Modern homosexual activists do NOT appreciate this sort of viewpoint.