Under the law of all but three states, after SRS you can get a court order to change the gender on your birth certificate. Some states, it only effects certain legal rights(ie: in some states you can get your gender changed on your birth certificate, but for purposes ofsay marriage the sex used is what you are born with).
Genetically they are men and will always be men.
I have no issue with this group of people wanting to have "sex-change" operations, take hormones, etc to live out a desire to be female but the scientific genetic reality is they were born male despite the internal physiological and neurological need for them to want to be female. They will always have XY chromosomes.
They are not women and labeling them as such in fact distorts the real differences among the men and women to cater to a group of the population that is less than 1 percent (about .3% according to a study I read in the past).
Edit: Does that mean I'm against them being married or being allowed to access government or work place financial benefits? No, however that doesn't mean I'll ignore the actual genetic and physical differences (even though they have been surgically altered or removed) between them being pseudo-female/make, etc vs real women/men.