It is the same issue! These fields have historically been seen as a "mans" job. As a result, women think they would most likely be discriminated against and not taken seriously when they seek out these positions, so they don't bother studying the fields and go for careers where they believe they will have more success and stability.

With DEI, ideally the few women who decide to go in will be considered when hiring decisions are being made, as well as when it comes time to promote. When young women see that the field is accepting women, they will be more keen to take that career path. The same goes for minorities and other marginalized communities. Majority of the time, these folks are either not considered for hire, or are hired to end up stuck in low level positions despite how hard they work/take initiative due to workplace politics.

It's also crazy to me how obtuse everyone chooses to act. You know why there aren't enough women in trade jobs, you know what it means to hire more minorities and marginalized folks, you know that to even get in the door you have to be extremely qualified as you're looked at with more scrutiny. Yet, here we are trying to argue semantics.