[Steve_Seattle]

"Ask yourself this: “Are there any genetic defects which typically prevent reproduction because they are fatal?”

But aren't most of those defects extremely rare? Some people claim homosexuals constitute up to 10% of the population.

[Bidimus1]

The tenth value was generated by a very poor study in a very long time ago by a man named Kinsey (1948) More recent studies generally place the upper boundary at 4 and the more likely boundary at 2 to 3 percent

http://www.washingtonpost.com/national/health-science/health-survey-gives-government-its-first-large-scale-data-on-gay-bisexual-population/2014/07/14/2db9f4b0-092f-11e4-bbf1-cc51275e7f8f_story.html

[Rebel_Ace]

What is “claimed” and what is “actual” are two different things.