What does it mean in today's society to be a woman anyway?

Someone posted this a day or so ago, and it's a blog or small article by a woman. When I first saw the title, I was pretty sure I would disagree with most of the points, but I gave it a read. Here's the link if you want to check it out.

http://louderwithcrowder.com/dear-transwomen-how-c...

So in this article, this woman says transwoman, a) creep her out and b) will never know what it means to "be a woman". She mentions how even though she is a tomboy she is more feminine than they will ever be, and that even more masculine women today are more feminine than they will ever be. She says that transwomen are making it seem like being a woman is all about wearing heavy makeup, having big boobs, and wearing feminine clothes. But in all the blog, she never says what she thinks "being a woman" even means. Personally, I thought it was as simple as I have boobs and while they can be annoying I enjoy them. I have a vagina and while once a month I don't like my internal organs, I do not want a penis. There are obvious differences between men and women, but apart from maybe being paid more or earning respect a tad faster in some groups, I don't want to be a man cause I don't want a penis. Does being a woman mean something I'm not aware of, or is it as simple as I have boobs, a vagina, a more feminine face shape (sometimes) and I enjoy being considered a woman? I'm just curious about this.