How, specifically are these reports flawed?
You've cited an article report that shows that children raised by a single guardian don't do as well as children raised by two guardians. You've cited a report that shows that adult children of divorced parents are less likely to marry someone of the opposite gender.
And you've cited a "Pamphlet" from the
Family Research Institute. The studies cited by that pamphlet are mainly outdated - some reaching far back to when homosexuality was considered a mental illness. Newer studies, as I've shown in my previous post to you on this page, have shown much of the conclusions on that pamphlet to be mistaken.
Not to mention that none of it backs up your claims - that same sex couples are "dysfunctional" or that same sex marriage damages any society that has legalized it. This last claim you have cited no evidence for in this thread - though you have made that claim multiple times.
The point still remains - legal marriage is not based on the ability to reproduce with one's intended spouse. I would really like to see why, given this fact, what non-religious arguments do you have against same sex marriage?