Intersex does not mean transgender, and the internet contains no information on the suggestion that imprinting effects the gender of children who insist they are of a different gender than they are biologically. There have been some studies that found connections between the observation of imprinting behaviors and the brains of non-humans, however.
intersex people* largely acquire their gender identity via imprinting. Therefore, intersex people often choose the gender of those they imprint on—whether it be a friend, family member, etc. This suggests that imprinting can be a powerful phenomenon and can have an intense effect on an individual’s overall development and mental state.
An integral characteristic of imprinting is that it occurs at a specific point in life, usually beginning the moment they are born. This period varies between species, ranging from within a day or so after birth to almost the first few years of life. Imprinting does not normally occur later. In animals, imprinting involves being drawn to the characteristics or sight of the first creature or item seen at the time of or shortly after birth. Although it has been most studied in ducklings, most animals appear to have some type of imprinting mechanism.
Just a thought. How else to hypothesize the existence of children insisting they are a different gender? The effect has been little studied, and I was not able to find any hypothesized connection between the two. I'm open to enlightenment.
* Intersex people are born with sex characteristics, such as genitals, gonads and chromosome patterns that, according to the UN Office of the High Commissioner for Human Rights, "do not fit the typical definitions for male or female bodies."
There is an estimated 1.7 percent of the population worldwide who fall into this category..