It is a mental disorder, undoubtedly the one Dostoyevsky foresaw in his diaries and predicted would sweep the Western world in the 20th century.
It has finally been documented by the professionals as "Pathological Altruism," and a good review of the recent book on the subject is at Pathological Altruism | American Renaissance
It affects only White people, with maximum effect on White women, and it is killing us as a Race.
That crazy Texas woman should donate her other kidney to another negro ASAP. All other White race traitors should do likewise.