This is a very important part of the problem in my view.

Pregnancy and child rearing has a real cost for most businesses, and it is not surprising that discrimination occurs as a result. Trying to ignore those issues and simply make discrimination illegal will never be particularly effective because the underlying issues have not been addressed.

I think we would be better off acknowledging that those issues exist, but fostering a culture where making sacrifices to support families is considered absolutely worthwhile since it is such a fundamentally important part of our society.

There should still be laws against discrimination, but we should not expect the existence of those laws to police our behaviour. A person's behaviour is primarily controlled by what they believe is right, not what they believe is legal