Firstly, this is not an anti-feminism thread. I don't want to hear about feminists and how they friendzoned your virgin-ass before stealing your non-existent wealth in a divorce court.
Anyway this is a trend I have noticed growing up and it seems massively restricted to people who are both White and middle class. To begin with, consider the sorts of sports men who fall into this bracket tend to take part in, it's usually things like long-distance running, orienteering, tennis and possibly swimming, contrast this with typically working class sports, such as boxing or weightlifting.
It also extends to diet (the meat thread got me slightly thinking about this topic), of the male-vegetarians I have met, all of them did fall into that typical left-wing, slightly androgynous, middle class, social-justice warrior archetype. Equally stereotypical working class food, seems to include lots of meat, be very heavy and perhaps include less vegetables than it should.
There are also attitudes towards things like violence and confrontation; in working class culture, it is seen as a positive to be willing to fight and even more so, to win, whereas middle-class society, almost teaches you that it's shameful, that you "lost" your temper, the very language used alludes to a person who fought as not being worth as much as they were before (lost).
It's not just these things and I do fully expect someone to make some smug comment about how it's wrong to define masculinity and femininity in these ways and I would like to say I am not telling guys that it's wrong not to be masculine (it's neither right nor wrong, you can't help who you are), but I do wonder if there is a social pressure in this regard, which rather than rigidly enforcing traditional gender identity, stereotypes anything relating to traditional manhood, as being unrefined and bad.