I grant that there may be discrimination both in favor of and against women.  But the claim of the media is that women on average in the USA are paid 20 percent less than males for the same work.  This claim is very hard to believe given the drive of business to make money and be profitable.  We just do not see the drive to women as a source of cheap labor.  20 percent is a massive difference given that labor is a very major cost to business and that profit margins are often much less than 20 percent.  But, hey, politics is politics, full of fake news and so many eat it up.