Gender-equality paradox
If you want more girls in STEM you should strive for a more oppressive society.
The gender-equality paradox is the finding that various gender differences in personality and occupational choice are larger in more gender equal countries. Larger differences are found in Big Five personality traits, Dark Triad traits, self-esteem, depression, personal values, occupational and educational choices. This phenomenon is seemingly paradoxical because one would expect the differences to be reduced as countries become more gender egalitarian.
https://en.wikipedia.org/wiki/Gender-equality_paradox