And exactly how many is "some"?
Some researchers could be found to support almost anything. Some researchers also claim that global warming isn't real. The last quote you placed was from 2001, and a lot has been learned since then. I predict that as we continue to learn more about genes, there will be a growing number of voices who will advocate the restricton or outright ban on genetic research due to the dangerous and destablizing effects it will have on the fragile PC worldview.