You really don't need to reach that far. As a man if you are too often vulnerable, too much, for the wrong reasons or at the wrong time you will loose the respect of your partner and soon after there love.
And what do you mean by wrong times or reasons?
How could I trust someone's resilience when they don't show they've been through things that built that resilience, and demonstrate it?
How can I trust someone who so closely monitors how much and what sort of emotions to show to me?
Perhaps 'disconnected' is the wrong word, but what I mean is that emotionally healthy people feel their emotions and express them, not just hold them at arm's length and pick and choose which to feel and express.
That's new. My crippling depressing and social anxiety will be glad to hear it!
Sometimes the long situation. When a situation has lasted a long time, it sticks, and turns into culture, gender roles.
When a situation has lasted a really long time, it sticks hard, and becomes biology.
But most of the time, it's neither culture or biology which decides what men and women do. It's the immediate situation.
And even if you think it's culture, even if you think it's biology, if you don't like how men are (or how women are) you have to start with changing the immediate situation. The others will follow - eventually.