The Less Manly Generation

I read that men in our generation have less testosterone than previous generations. Are men becoming less manly? From my personal experience, I don't know about this, just look at me! But I gave this some thought, trying to find some explanation for this. The most obvious explanation is that the world has changed, at least in first-world countries. Main industries have become more technological and service orientated and much less manual labor. Women are working harder than ever and evening the duties that each gender has to do. With women doing jobs that males have usually done, men are becoming less masculine. Does that mean that women are becoming more masculine?
If that said, I feel the peers in my generation do not fit the old definition of being "manly". My father has always been very skilled with building and repairing things around the house and car. I would like to think I could do the same but the reality is that it would take much longer for me to do the same jobs. Do these skills just build up from experiences of life just like tools in a toolbox? Like how many people actually change their own oil? Even less try to repair their own vehicle when something is broken. Maybe we need to change the definition of being masculine to being able to handle technology and understanding the services we use everyday. I would be so macho!
I think we have the openness of society has definitely impacted the manliness of the male gender. With boy bands, the world changed its perception of males. Men were no longer held to the common standard of looking tough and rigid (With less manual labor jobs than before, this look has exploit the male body similar to the female body). Being skinny, dressing well, and having a gelled hairstyle were more commonly acceptable than ever. The entertainment industry has affected the perception of manliness, no longer does the rigid and strong man win over the girl but it's like a David and Goliath story, with the more sensitive (and usually smaller) male winning over the beautiful lady. This seems to be the mainstream thing to do the past decade or so. Men can be more sensitive and peppy in the open in society present day without being criticized by it (Or criticized less). Like, I'm listening to "Call Me Maybe" by Carly Rae Jepsen and I'm loving it. Hopefully, no will call me less masculine for it (Nor will I care! It's so catchy!)
While it seems that the male gender is becoming less macho, why can't men have it all? For the men in this world, we can have it ALL! We just have to work ten times harder than we currently are. Let's stop being soft! No longer should we bring our cars to the dealership for service. We should repair everything on our own and build up the skills that the generation before us failed to teach us! We can be better men than the ones before us, and be sensitive at the same time! Let's take it ALL!
P.S. I'm going to be as ripped as Manny Pacquiao soon! So watch out!