It's not about STEM
He doesn't care about STEM, he cares about "diversity". But he doesn't care about diversity in street sweeping because you don't win votes by encouraging women to do dirty work in unsafe or uncomfortable environments. And he doesn't care about diversity in rap or social work, because there are no votes in making black culture "inclusive" or in challenging women's dominance in any area. What he really cares about is being sexist and racist towards men and white people, because that's what the influencers call for and anyone else is a "troll".
Degree courses where women are >70%: Health, Public administration, Education, Psychology.
Degree courses where men are > 70%: Computer science, Engineering.
Degree courses which are being made "diverse": Computer science, Engineering.
Which countries have "diversity" in STEM? Those where women have fewer options. If you let women choose not to be scientists, they do so. Be fine with that, like we're fine with men choosing not to be psychologists.