"Could women owned businesses succeed without laws advantaging them over male owned businesses?"
Maybe. I mean probably, but how are we going to know? This is part of the problem with these unequal and gynocentric government handouts. There is no measure of what they do or why they are even needed to begin with outside of feminists just demanding them.
If you really think about this, it's really just feminists completely disrespecting women with this assertion that equal opportunity are not enough for women to look an equal man in the eye and compete properly for any position. And by continuing to push for these advantages for females only, today, what feminists are saying is that women are inherently NOT equal, and therefore need advantages built in ALL THE TIME in order for women to be able to meet men at their level
It is saying that equal opportunity is not enough for women to perform equally with men. I don't necessarily agree with this, and neither would fully capable adult women who may not be receiving their due respect because all women become suspected of receiving these privileges whether they accept them or not.