"We should concede there may be -- may be, not is - a biological basis for homosexuality, and then we should add, "So what?" There may be a genetic basis for alcoholism, but no (sane) person is arguing that alcoholics should be allowed to show up at work drunk."
And then bare the double-edged sword to this whole silly leftist 'science' project, one that makes the liberals cringe,
"And if they do discover a 'gay gene,' wouldn't that be awful for the gay community? Just imagine all those breeders aborting kids with the gene to ensure grandkids..."
Then they have to decide whether they'd then choose between abortion rights or gay rights. Their heads will explode.
You are right! How many "gay", "fat" babies are going to make it out of the womb?