Do you think reaching some critical mass of female developers (say 20%) will help prevent the problem? Perhaps an industry goal of reaching 20% female developer

Do you think reaching some critical mass of female developers (say 20%) will help prevent the problem? Perhaps an industry goal of reaching 20% female developers would be worthwhile (who would set such a goal?) These problems also exist in the boardroom and some have pointed out that it takes 3 women at the table in order for the rest of the room to treat them fairly. If it's just one, she's sidelined. If it's two, then they're seen as just teaming up with each other, but three makes them legitimate in the eyes of the rest of the group. Perhaps larger groups of developers can make sure to have at least 3 women on the team to help eliminate issues.