No one is treated equally...folks need to get over that. You need to fight for what you get and not sit around expecting certain kinds of treatment.
Many women were limited in their businesses, political, and professional opportunities.
Then start your own d@mn business, build your own political base (like Maggie Thatcher), start your own d@mn law firm.
Long story, short...quit your beatching and get to work!
I seriously doubt that a black person would be treated unfairly “in the world of Donna Reed”.
Seriously, the 50’s middle class Western Culture society would be the absolute best circumstances for anyone of any skin color to live in.
The deal would be, though, that you’d have to behave within the expectations of that culture in order to thrive.
Free people are not equal and equal people are not free. ~Jerry Pournelle (paraphrased)