Which laws? Most institutions in pretty much every society are still largely controlled by men. If you remove laws that are meant to create more equity or to protect women from discrimination, this trend will grow stronger, as people tend to hire and prefer the company of others like themselves. Men will vote for other men and male dominated fields will continue to hire men due to explicit or subconscious bias. There are always exceptions to this, but you can see that sort of self-selection occurring even in things that are low stakes, like hobby groups.