I find this is a tad insulting.
The insinuation here is that women who do their nails and who don't know much about feminism are stupid and pandering to the patriarchal image of women being around for decoration purposes. Either that or the women who do know about feminism are less stupid but still pandering to that patriarchal image.
I do my nails for me.
I'm a very practical person - I've played the piano since I was 6. I clean, I garden, I sew, I lift heavy weights 4 days out of 7, I knit, I take the bins out, I lift my son up and down all day. I've been a teacher, an army cadet instructor and a cadet myself. My last job involved heaving 25kg barrels into the warehouse. I get stuck in. Always have. And I've always taken pride in my nails.
I like spending time on my hands and nails, tidying them up, trimming back the cuticles and applying my own gel nails.
I like my nails to look nice FOR ME.
What's next? Are you going to suggest we stop washing and conditioning our hair just because it makes it look pretty? How about buying nice clothes? Hmm? Bloody hell even high heels aren't allowed in your book.
Ugh. This is like a reverse Mean Girls situation. Pick on the women who make an effort to look nice for themselves because you don't do it.
Women are free to make whatever choices they want with their nails, hair, make up etc. You don't have to like it, you can hate it you are perfectly entitled to an opinion. But as a feminist you should be pleased they have the choice to do it and that they do it because they fucking want to.