Lots of hate on for female entrepreneurs here.  Passive income changes means that money saved in corporation to pay out while on maternity leave (and therefore in a lower income bracket) will be taxed more.  This is the crux of their argument and it is true.  Yes there are many who could never do this, just like there are many that have great maternity benefits, but for these female entrepreneurs its a significant change and they are understandably unhappy.