But we have to understand that in those situations it is not oppression. And that is a key point. Men are not oppressed by society when they are discriminated, because by-and-large, men make more money, have more opportunity, stay within their industries longer, are (perhaps due to last point) promoted more often, tend to be selected with a gender bias to speak about their subjects. Women currently get more college degrees in general today, yet the gender pay gap remains. That's evidence of systemic oppression. That's why we can say men at large are not discriminated against.
No, that's a correlation of two things.
That's just bad maths, sorry. First you have to look at what subjects men and women chose and what average pay is for careers in those subjects. Some people graduate in computer science, other people graduate in "do you want fries with that" liberal arts or whatever.
Go to a morgue in a place of heavy industry - mostly men.
Go on a cargo ship, spending weeks at sea in less than comfortable conditions. Oil rig, mine, etc
Some examples at random: percentage of males in teaching professions, and/or daycare?
Breast cancer funding and research versus prostate cancer funding and research, despite the relative frequency of each? Hint - 1:6 men will get prostate cancer, 1:8 women will get breast cancer. But the National Cancer Institute allows for $1,318 worth of research into prostate cancer per new case, and $2,596 for breast cancer (http://well.blogs.nytimes.com/2008/03/06/cancer-funding-does...)
Just some thoughts...