Which is exactly why you want to know if one group is on average physically weaker than another: so you can take care that you're not systematically impinging upon their rights by not recognizing that!

Good grief.

Every squirrel and chipmunk has the right to eat seeds from the bird feeder. But if the bird feeder has slats that a typical chipmunk can get through, but not a typical squirrel, you're impinging upon the rights of squirrels.