[throwaway28833]

>Women do in fact make less than men.

If they do then why don't employers hire women only since it's cheaper?

Here, have some reading material:

https://www.wsj.com/article_email/the-wage-gap-myth-that-won...

http://time.com/3222543/wage-pay-gap-myth-feminism/

Also, check out Factual Feminist on youtube.