What I gather is 1) He is okay with guys having gay sex in a closed bedroom 2) but not okay with proclaiming about being gay 3) this constitution thing is something new...I have heard before that gay sex is not what God/nature wants 4) betrayal of parents is about arousing the guilt-complex among the gay guys 5) objection to gays playing victims and asking for decriminalisation of gay sex : have heard this many times before; once on the recent we the people on ndtv...do what you want to do inside four walls , why gay prides n all?
For all you know, he may himself be a confused gay, not able to come to terms with himself, wanting to lead a straight life. Let him speak more freely, without interrupting, without contradicting and without questioning his attitude.