The issue is that it doesn't matter. Women might be less interested in tech, as in if you took 100 men and 100 women and measured their interest the men might be higher.
That doesn't mean no women are interested in tech, or that those who are interested are less competent.
I do think the idea of "less interested" is shallow and ignores every other explanation. For example, women are a majority in health care but a minority of doctors. Why?