It's pretty obvious isn't it?
The thing you understand a woman to be is not - cannot - be the same thing as being a biological female.
So trying to appropriate the name, history, rights and opportunities of female people because you are a trans woman makes no sense.
If your definition of the word woman is the right one, then being a woman is nothing to do with being female and female-specific rights and provisions are none of your business.
And if my definition of the word woman is the right one, then being a woman is entirely to do with being female, and female-specific rights and provisions are still none of your business.
The only reason anyone gets confused about this is the weasel use of the word woman to mean something different to what it always did in culture, society, history and law, while insisting this new definition gives you rights over what was created by and for the people who met the old meaning.
The way out of this is simply to recognize that the thing you have labelled "womanhood" is a different thing to the thing female people are, stop trying to take by pressure and emotional manipulation what in reality was never anything to do with your "womanhood" anyway, and start to build something honest for yourselves and who you are instead.