Positive News: Find out where we're heading in the right direction
Another way to respond would be "Because they are." Because a lot of times characters will just create themselves and things like their race, sexuality, and gender just come naturally when writing them rather than being conscious decisions.
I believe in equality and feel everyone should get treated the same. This connects to my dream job of creating a free medical health clinic because no matter who the person is they will be treated no differently than anyone else of any race or class.
The 'ending' gender roles I don't like, because most kids and adults fit well in their gender roles and we can mske room for the outliers. But if you wont be happy untill gender roles are ended you will never be happy.