I'm so sorry for all those commenters having sad stories and being told to "man up". That's very sad
I might be wrong but I have a feeling that it is a very US influenced problem (so now a very English speaking country problem). Maybe I'm wrong, maybe I'm influenced because it is Internet and there's plenty of Americans and everything is written in English.
Being born in a French speaking culture, I don't feel that way. My friends don't, my non French speaking friends don't as well. Most men of my generation (millennial) that I have met could express emotions without much problems, and women would not react badly to it, but maybe I'm just lucky.
Of course, there's always some shitty people, some overly manly jerks or non caring women, but I would say that they represent less than 15% of the population I've met in my life (data source: My ass).
So, am I wrong ? Am I influenced by Internet ? How is it for German/Spanish/Portuguese/Italian/Japanese/Whatever cultures ?
And if I'm right, well that sucks. How can we help ?