From the official website of the MIT Department of Physics:

Diversity in the MIT Department of Physics The MIT Physics Department is committed to increasing the diversity of its faculty and student populations to improve our excellence and to better serve the society that supports our work. Like in many physics departments, white males are over-represented in our student and faculty populations. There are several reasons to pursue change, seeking to increase the number of women and under-represented minorities in our community: … As the US becomes more diverse, we must evolve to remain relevant. White males are a decreasing minority in the US.

Whites, male and female, make 36.5% of undergraduates at MIT, while males make up 54% of the students, so the white male proportion is likely about 1/5th, and possibly less among physics majors.

Christopher Caldwell famously observed:

“One moves swiftly and imperceptibly from a world in which affirmative action can’t be ended because its beneficiaries are too weak to a world in which it can’t be ended because its beneficiaries are too strong.”

The MIT Physics Department Corollary is:

“One moves swiftly and imperceptibly from a world in which the majority can be demonized because it’s a majority to a world in which the majority can be demonized because it’s a de facto minority.”

After all, what have white male MIT physics alumni ever done for humanity? *

From Wikipedia:

MIT Physics alumni who have received the Nobel Prize for Physics are Adam Riess (2011), George Smoot (2006), Eric A. Cornell and Carl E. Wieman (2001), Robert B. Laughlin (1998), William D. Phillips (1997), Burton Richter (1976), John Robert Schrieffer (1972), Murray Gell-Mann (1969), Richard Feynman (1965) and William Shockley (1956).

* I mean, besides make everybody else feel resentful?