Ah, gotcha. I bet there's something to that though. It seems natural that having a very strong sense of gender at age 4 would appear ridiculous to most people given that it doesn't fit with their own experience. I do expect over time mainstream opinion on this will shift much as it has for homosexuality. Likewise there I think it was initially difficult for straight people to relate, because it just didn't fit with their own experience at all—sexual attraction is something for people of the opposite sex; if you think you're attracted to people of the same sex, that doesn't make sense, so something must have happened to you. Over time, more and more gay people were out, more people came to realize that they knew gay people, and those people truly did experience what they said they experienced, and mainstream belief shifted.

Per the original comment here though, I hope it doesn't happen by one 'side' winning and beating the other into submission, but rather through that process of understanding.