herethereandeverywhere
Yes I know, and I didn't mean to minimise your experience. But there is no doubt that people are looking balefully at their children and wondering, on the flimsiest of reasons.
I'm not suggesting for a single second that is what is happening to you.
The contrary, I personally believe that there is a kernel of truth to transgenderism.
The problem for a parent, such as youself, is sorting the wheat from the chaff.
Statistically, if a child identifying with the opposite sex is left alone they will grow out of it. Whether that is because it is just a phase, like many children, or something more profound, it is often self-limiting.
It's a very difficult question, because no one wants to see a child in distress. One thing I wouldn't do is let a child think it is possible to change sex.
Don't come down hard on her choices, be very affirming about girls and what they can do (anything). Don't pay it too much attention.
Can you hook her up with another girl on a play date who could be a role model? Who shares her interests, but is unequivocally female?
People are critical of the trans-ideology because the collateral damage is severe. Gender stereotyping, women's rights, etc.
But it also has taken the focus away from gender nonconforming children, or teenagers with gender dysphoria.
Don't panic and be patient. A loving, supportive environment will go a massively long way to ensuring the happiness of your child.
The wait and see approach is advocated by a lot of gender experts, precisely because this is very common.