Yup. I don't dispute that. Quotas would work against that too.
Quotas really are quite a multifaceted fix.
- Directly and immediately drive up numbers.
- Create a demand for women that pulls the supply.
- Create a supply of women leaders with experience and skills.
- And create somewhere for them to go, so they don't get discouraged and quit.
- Change people's mental image of working with/for women from abstract and theoretical to specific and personal. Overwrite their stereotypes with actual experience. This goes for both men and women.