From my experience I am seeing the decline of what I would call manly men. What is the cause of it and is it even a problem? Who's to say. I have no facts or figures, no sources; I can only share with you my experience as a kid in the 80's and a teen in the 90's.
Women's lib was really getting a foothold in the 80's where I grew up. Divorce was starting to become more commonplace, some women were beginning to "wake up" to the fact that they were just as capable as men. They were pushed into it somewhat. Women got forced into the job market when families could no longer make ends meet with one income.
The important thing to remember is that I was just a boy at this time. My father was a man's man and my role model for what it meant to be masculine. He worked on cars in our driveway, fixed anything that broke around the house, and worked more than forty hours a week as a driller in the oilfield; man's work. He also kept his word, respected others that gave him respect, helped out people who needed help and put his family above all else in this world. He was a penny-pincher and a hard worker. He would also turn into mush whenever he held a baby.
Now on the other hand, my mother was a school teacher and pretty dedicated to women's rights. I had to fight her tooth and nail growing up to actually become what I consider a man to be. When I missed the toilet as a toddler she wanted me to sit down to pee (my Dad stepped in and didn't let that happen). She let me know day after day that women were not just as capable as men but more often than not, better than men. When I hit puberty it really opened up the rift between us because now I had become the one thing she was trying to prevent.
To this day we don't have a good relationship. It's sad really, because she got so caught up in changing me because she didn't like the environment she grew up in that she pushed me completely away. I am inherently a man, and if you have a problem with that, which is something fundamental that I can't change, then you have a problem with me.
But I've gotten a little off topic here, it's just something that I carry with me day to day. I had a great relationship with my Mom when I was very young and it was destroyed.
Good or bad gender rolls are changing and the growing pains are going to be terrible.
We're all human and we want to find our place in this world.
What I think a man and woman should be and represent are going to be different from the next person, and this is where the problem lies. Good or bad sixty years ago everyone new their role, there were no questions.
We'll get there eventually when everyone learns the very basic principals of responsibility and consequence, not to mention, equal expectations.
I personally have a problem with the following:
Men who shave any other part of their body besides their face (grooming your junk is okay)
Men who don't know how to change their oil or a tire.
Men who spend more than 10 minutes getting ready to leave the house.
Men who don't know their way around a woman's body.
Men who would rather play the "game" than actually work for a position.
Men who gossip, back-stab, etc.
Are you a man if you don't fit my list? Technically yes, just not manly...
Disclaimer: These are all my opinions.