I agree that ‘70% for the same work’ doesn’t make any sense. Just to add to what’s already been said, there are a lot of businesses where (1) labor costs are a sifnificant percentage of expenses; (2) profit margins are thin; and (3) there is intense price competition
For example, if you ran a lumber yard and could pay your workers 70% of what your competitors did, you’d make a freaking fortune. Now, it may be true that a lot of lumber yard owners are racist, sexist, etc., but that doesn’t stop them from hiring black and hispanic men. Why? Because (generally speaking) their top priority is to MAKE MONEY.
The reality is that most women just aren’t interested (compared to men) in doing jobs that are dangerous, dirty, or involve significant manual labor. Further, people ignore the fact that there is intense social pressure on men to MAKE MONEY.
women : physical appearance :: men : ability to make money
Frankly, I’m surprised that women earn even 70% of what men do.