If interviewing was the problem, it would imply that there are a lot of unemployed female developers (thousands and thousands - if they all were hired, we would

If interviewing was the problem, it would imply that there are a lot of unemployed female developers (thousands and thousands - if they all were hired, we would expect a huge increase in percentage of female devs, so the number of unemployed female developers has to be a huge percentage of the number of all developers). Is that the case? How many unemployed female developers are there? The other premise, that "diverse people" get less chance to practice interviewing, also seems bogus to me. I don't think good developers go through that many interviews and/or job applications before they get hired. It may well be that interviewing is broken, what with the unreliable outcome, but it would be broken for everybody in the same way.