Taking a slightly different tangent. Let's assume for the moment that "science" can and does establish that homosexuality is embedded in the genetic makeup of an individual as deeply as heterosexuality. There is no choice except in a few profiles which allow bi-sexuality.

Would that drive a few people to change their view that it's a choice? A lot of people? Would they say it's an abomination if God has forced some people to have or be abominations? If only one person decided that homosexuality was simply another God given sexual orientation rather than an abomination could we say that improved and more accurate knowledge (science), while not partial to anything, can drive values in a thinking person?

I think science, which itself has no values, has a tremendous ability to change values. After all, science is just reality on a small or large scale. The hydrogen bomb does not think it's bad to kill people, it just thinks that it's sort of fun to split an atom over here, and then fuse a couple over there. It all balances out, no harm no foul. But the hydrogen bomb forced a revision of the way people looked at war.

Science can show that the ingredients of inhaled smoke have the effect of creating cancerous growth in lung tissue. That's interesting. Man can then use that data to decide that smoking is "bad" (value judgement).

But the science itself can only be an accurate reflection of what is and what isn't. I agree with you, I believe, and him, I'm pretty sure. Unless I missed it all completely, and in that case I'll quote Emily Litella, whom I'm sure I understand and say,

"Never mind."