Is that right?
Funny, you would think a concept so supposedly 'fragile' would have vanished by this point considering how dedicated a significant chunk of people in the western world are to wiping it out along with the concept of gender in general.
Instead these concepts are very much alive and kicking. Hmm. It's almost as if the idea of them being 'fragile' in the first place is a petty delusion born of powerlessness?
If you'd read the rest, you'd realise that femininity is equally as fragile a concept. And yes, they are still existing, but they have both changed so much throughout time and space that to try to use them in any kind of objective sense strikes me as an exercise in futility. One need look no further than the oft-cited change of pink as a 'strong', masculine color (being derived from red) and blue as a 'soft', feminine color to the paradigm we have today, wherein pink unequivocally signifies feminine, in Western society anyway; or the myriad forms of cultural dress for men which incorporate what we in Western culture think of as 'a skirt', which is designated a garment for women only.
Edit: I will make no bones about the fact that I think gender roles are something of a nonsense which limit everyone, be they man, woman or someone who doesn't feel they fit in the gender binary. Physical sex in terms of gametes obviously exists, and is likely to continue to exist for the foreseeable future, since humans reproduce sexually. Gender, as far as designating various traits, behaviors, personality types, modes of dress, etc. are concerned, seems largely pointless to me, since there is as much variation within genders as between them. Basically, absent strong societal influences to shape people designated as men into certain roles and people designated as women into others (and often despite them), people are just people, and gender doesn't particularly tell you anything about someone as an individual person.
But I am primarily an individualist, I guess - seems to me it is better to evaluate anyone you meet on their own merits based on who and how they are, rather than to just assume things on them based on their demographic designations as though they were nothing more than a walking collection of stereotypes.