Thank you but there is still no proof. I read the articles and they were long but if you also read the whole thing you will find what I'm talking about
Here is an example
You quoting article
And later the same articles saysMethylation turns off certain sections of genetic code. So even though we inherit two copies of every gene—one from our mother, one from our father—whether the gene is methylated often determines which of the two genes will be turned on. Methylation is inherited, just as DNA is. But unlike DNA, which has an enzyme that proofreads both the original and the copy to minimize errors, methylation has no built-in checks. It can change from one generation to the next and may be influenced by diet or environment. It’s in this mutability that Bocklandt hopes to find the secret, by seeing which flipped genetic switches correlate with homosexuality.
So again it's a theory that might be true and might be not true. And all I'm saying that until it is true you shouldn't say otherwise and that's all I'm saying in this regardIdeally, Bocklandt would scan the genome of each individual, looking for a methylation pattern anywhere on any chromosome that shows up repeatedly in the gay member of each twin pair. Unfortunately, at the moment it costs about $10 million a person to map out every base pair of the 46 chromosomes, so Bocklandt is looking only where he suspects to unearth genetic gold. If he finds a pattern, then he will look at the DNA beneath the methylation.
Moreover he's studying twins, specifically , to prove that it is beyond DNA. Because twins have the same DNA and one of the twins can be straight while the other is gay. And this is a strong argument against "born this way" nature of the cause. However it is also a strong argument against environmental cause, so there is a chance that it is social(for example one of the twins dominating the other) but again, no proof
PS: However if it is social the Russian law seems to be quite reasonable. I believe some gay people would like to be "not-gay" if they could. If being gay is not genetic but acquired during brain development then it can be prevented. As well as some kids require psychological help to give them a better chance in life (I'm not talking about gays here but rather special eds )