I would imagine that ignorance is the norm for people discussing gender at this point in history, and I would argue that it should be expected and taken in stride, rather than condescendingly insulted or dismissed.
That said, I'm afraid that I don't understand your implications. You seem to be suggesting I am somehow ignorant of the issue at hand, merely because I cautioned against making sweeping generalizations about the nature of human behavior, biology, and psychology?
I stand by my statements. Gender is a almsot certainly a cultural construct, and I have seen no compelling evidence to suggest that it is in any way innate or intrinsic, or that one can be "born" gendered one way or another. And I can assure you, I have not failed to look for such evidence.
Now, I admit, I am predisposed to be biased against any argumentation for any human quality or behavior being "innate". Too often have I seen such reasoning historically employed for unwholesome or nefarious agendas.
Racism was practically built entirely on the notion of innate human qualities - that certain people were born "better" or "purer" or for different "purposes" than other. Proponents of racism would insist upon how one group of people was "born" to be disenfranchised and exploited by another, which was in turn "born" to rule over the first. Or perhaps that one "race" was "innately" wicked, or stupid, or violent, or what have you.
Sexism also long enjoyed bandying about this line of thinking. Women were believed to be "innately" timid, weak, unintelligent, subservient, emotional, and all the rest. They were "born" to be meek and unempowered, while men were "born" to control every aspect of their lives. Some people today still believe this nonsense.
So when someone tells me that people are "born" homosexuals, or "born" transgenders, or "born" anything at all that isn't a physiological trait that has been proven to be linked to certain genetic encodings, I am inclined to disbelieve them outright.
You may call that ignorance if you wish, and rightly so. I do not know the exact origins of transgendered behavior within individuals, any more than I know the exact origins of the universe. But at the same time, neither does anyone else.
Consequently, when someone tells me that such-and-such deity created the universe in such-and-such way, I remind them that they cannot possibly know that, that they have no evidence other than personal feeling or "faith" to support that statement, and that I find their argument to be irrational and empirically lacking. The same goes for statements about people being "born" transgendered, or "born" communist, or "born" muslim, or "born" with an innate appreciation of baroque architecture.