I don't recall any role models from my youth (70s-80s) that reflected the person that I was, or seemed to want to become, or in fact became today.

As a tall white adolescent male in the United States of that era all of my look-alikes on TV and in the movies and books were either alpha-males, tragically failed alpha-males (including nerds, scientists, the mentally ill, clowns and comic relief), or villains.

This is the white patriarchy at work breeding the new generation, of course. If you're a white man, and you're not in charge (either a good boss or a bad boss), you're a fuck-up.

There may have been the occasional funny or clever shy introvert in an ensemble cast presented at least in a non-disparaging way, but really I'm hard pressed to think of an example other than Mission Impossible where everyone's traits were considered useful, no matter how non-mainstream (And Barney the genius electronics guy was black, too, which was pretty good for the era).

Most media was (and continues to be) about The Alpha Guy doing Alpha Stuff in an Alpha Way. 

I think perhaps one of the reasons guys of a certain age who don't do a lot of introspection have a hard time with feminism is because they just don't know how to act in a world where people who look like them aren't always the Alpha Guy doing Alpha Stuff in an Alpha Way.

Most of the time people just play the role they learned before they were 20. If they never learned a role other than Alpha Guy, even if they're shitty at playing it, they will probably find it hard to play another role.  (Which is a reason, not an excuse.) 

So, I encourage the creation of media where there are positive role models for all personality types as well as genders and ethnicities. And it's good to see that this is happening, to some degree, in modern media. But I think there's a lot more to be done. As there is with every other aspect of feminism.