I think you’re looking too closely into it. Men tend not to wear their hearts on their sleeves which is neither a good nor bad thing. On a thing like Facebook they are less likely to do the whole ‘share this link if you want to beat cancer’ stuff that a lot of my female friends tend to do.
This is what I originally thought too, until I noticed the guys went rather out of their way to criticize the practice.
There's a friend of mine who is very liberal but often finds himself at odds with feminism, particularly if it requires PC-ness. This is something he sent me that he mocked a lot over the past week:
http://i.imgur.com/gWe2umL.jpg
Maybe I'm just observing a subset of the population that is particularly grounded in the internet, and therefore a bit less sensitive towards social interactions than a lot of others.
i think there's a backlash amongst liberals against what i suppose you'd call new "new left" types, i.e. those with a focus on identity politics and social justice. i spend most of my time on tumblr and there's a culture of that there as opposed to sites like reddit where masculists and such run rampant.
This is basically the truth (I also lol @ the reddit/tumblr dichotomy as a user of both sites, it's pretty accurate tho).
There's definitely a trend among younger, mostly male, liberals to adopt a "colorblind"/genderblind (never heard that as a term, but I'm coining it because it works here) perspective on things, essentially a belief that "race, gender, etc were big things in the past, but they don't matter anymore" which leads to support of gay marriage but also a dislike or at best indifference towards feminism and other "social justicey" movements.
Which is unfortunate, yet understandable (in an insidious way). The ideology that "race doesn't matter" or "gender doesn't matter" is common among many "progressive" types who want to both keep their own social privilege
and to deny that that privilege exists, or that they themselves have a role to play in perpetuating oppression.