Not quite. The number of younger women that are getting involved in hunting has grown pretty substantially lately. Additionally the actual demographics don't really support the claim you make, with one exception and that is the NorthEast. The rest the nation really hasn't seen much of a shift over the last decade plus.
Here is the data:
http://nssf.org/PDF/HuntingLicTrends-NatlRpt.pdf
Now, I do have to ask why you're such a downer? Lots of negativity springing forth from you. Why is that?