You’re not the first person I’ve seen equate the plight and horror of slaves and slavery to the contemporary condition of the LGTB community in a modern, first world, secular society, but I can’t help but wonder at exactly how it is that you arrived at that conviction.
(2) If you mean something like “paints an equivalence between”, I didn't. I provided an illustration of the concept that the existence of a cultural difference does not imply equal validity of both sides of the difference.
(3) The attitudes rejecting homosexuality are almost entirely not found in secular society, though they may be found in national whose government is, nominally at least, secular.
2. you did, and your illustration provided no such thing; it’s a strawman with no bearing in reality, and your very self-same argument can be used to undermine your own position...
3. what?
There was a parallel drawn between the cultural divide on both issues, and the implication was that, like slavery, oppression of homosexuals is wrong.
3. The hatred of homosexuals (at least hatred of gay marriage) tends to draw from religion. A more secular society has no reason to care.