As for the Hooker studies, I believe, based on a recent film about her and on my discussions with the late Dr. Hooker, that the criticism is incorrect and unwarranted. She did not insist on a random sampling. In fact, she never tested the idea that homosexuals and heterosexuals are equally likely to be normal and well-adjusted. Thomas Landess did a very detailed study of the Hooker research for the Family Research Council, and he contends the subjects themselves were the instigators of the study, and were well aware of, and had a vested interest in, its ultimate goal. This could very easily have had an impact on the Rorschach test.
Normality is a matter of definition in a given society.
What is considered normal or appropriate in one society, may not be so in another. One obvious extreme is classical Greek society, when the norms reportedly allowed an older, wealthy, prominent man to have a young boy as his preferred sexual partner. In that society, it seems to have been considered normal and desirable. That's right, I really don't. In fact, I just reviewed a book by Kurt Danziger called Naming the Mind for the Journal of the History of the Behavioral Sciences.