Lol
I find it funny when people try to define things that they don't even know how to define. Before you can say someone is this or that you have to clearly and logically define what this and that are.
Define woman? Define man?
Let me give this example:
People believe them to be constants, use genetics as source for their logic, however, even if you exclude Intersex, XX and XY doesn't mean man or woman simply because people with XY CAIS exist. Not only are XY CAIS treated like women, look like women from birth, legally women from birth, and can even have kids the good ol' fashioned way (3 case i know of natural child conception and birth documented), but because XY CAIS women exist, anyone can be one unless we give all women DNA tests to find out. So if you throw the genetics argument out the window what do you have left?
There are only 2 constants common to all men and women, and TS meet the requirements of those two constants.
1) all men believe they are men heart and soul and all women believe they are women.
2) society agrees with them
Those are the only two constants and requirements for being a man or woman, everything else is variable.