You're right and yet completely incorrect. White males are indeed the minority in graduate schools overall. However, in the hard sciences, even though we've been begging, browbeating and encouraging teenage girls for decades, they still are a minority. It seems women prefer the softer sciences and liberal arts. It's mainly men who like the hard sciences. Curiously, no one shows the least concern about men being so much in the minority in other areas. But let women be in the minority though personal choice and the sputtering social justice warriors start demanding extreme favouritism.