The feminist movement was about choice. If you wanted to work that was your call. If you wanted to stay at home, that was fine too. So in reality, as a woman, you can decide which one of these options you would like to do thanks the women who came before you fought valiantly so that you could make that choice on your own. No matter which one you choose, you're right.
Now in regards to a guy who feels emasculated because their significant other makes more than they do, tell them to grow up. In today's society, more women are going to college and they are earning more degrees than men. We are currently on the cusp of a paradigm shift on the image of gender roles in America. No longer will women be expected to stay at home and raise kids, while dad works. Sometimes, that will be reversed. If that day ever came for me, I would have no problem being a stay at home dad because its not about who is supporting who, it's about what are we doing as a team to move us along further.
I know my view is not going to be popular amongst guys. That is only because we've always been socialized to think that as a man, I must be the provider. What is funny, is that our perception of reality is skewed. In a hunter/gather society, most of the food is gathered by the women. Men only hunted a small fraction of the diet. In an agricultural society, women are expected to work in the fields just as much as men. The type of work (manual vs detailed) might be different, but at the end of the day, it's still work. So my question is, where does this ultra-machismo come from? Hell, I'm Mexican and I have to hear that stuff from my family all the time, even though most of the families that I know have the mom and the dad working in order to support the family but the dad is still seen as the bread winner!
So my challenge to you is this. Think about what you want from a relationship. Ask yourself if would you be happy being at home. Then make the decision that best suits you. Whichever one you choose, will be the right answer. Than tell anyone else who doesn't agree with you to go jump off the largest cliff they can find.