There's the "sad world theory" here: Some people don't care how good or bad their life is, they only care whether others have it worse. There are enough of those people that they're an actual social problem.
So in this case, the theory is that they'd rather be slaves to their husbands as long as they can look down on trans people. That's preferable to being equal to their husbands and also to trans people.
Give your landlord a negative tip.