What does it matter to you? Some women have large clitorises. Some people are born with indistinguishable genitals, others (men and women) are born with little or no genitals.
If by “lesbian” you mean “someone who’s attracted to women”, then yes, men in general are lesbians.
If, by “lesbian” you mean “a woman who’s attracted to other women”, then no, men are not lesbians.
Hormone replacement therapy, according to Wikipedia, is mostly used against menopausal problems.
So yes, to some extent they can change biological traits and characteristics.
If HRT changes nothing, then overdosing will have no effect whatsoever.
Feelings can be facts. Brain-development in the womb (including gender characteristics) is also facts.
Why do you need camping, suddenly?