Now I have to research the research design to counter propose you.
Certainly the author has a pro gay agenda. It just does not appear that he distorted the solid results from several different groups interviewed/surveyed.
Of more interest to my household is--what are the implications of such shifts in normative behavior? Time will tell. The most benign form of implication might be western cultures becoming more like some Asian cultures in such matters. That could be very interesting and potentially constructive.
It is interesting that so many are determined to distort reality regarding the topic--evidently to preserve the rigidity of their intense biases. They almost or do sound threatened. If so, it's sad when platonic caring triggers a threatened response.