Yes. The original argument is defective. Substitute the word 'male' for 'gay,' and you'll see the flaw: 'Male people cannot be normal. If everyone were male starting tomorrow, the human race would die out, so being male cannot be nature's intended way.' Or you could substitute the word 'female.' In either case, the argument makes no sense: Being male or female is perfectly normal.
Marilyn vos SavantBe able to defend your arguments in a rational way. Otherwise, all you have is an opinion.
Marilyn vos SavantOne of the few articles of clothing that a man won't try to remove from a woman is an apron.
Marilyn vos Savant