This is a nebulous issue with no definite single answer. All we have are anecdotal observations and personal assumptions. It would be a waste of Vivek’s time and useful energy to tangle with it.
What is true for one person like that, may have nothing to do with the causation for some other affected individual.
There ain’t no ‘gay gene.’ Vivek corrected his prior erroneous statement on that. Why a human chooses the path of perversion is nebulous.