In this modern age, Kali-yuga, the so-called brahmanas have accepted the abominable position of sudras or less and still want to pass as qualified brahmanas. Actually, a qualified brahmana always sticks to his own duties and never accepts those of a sudra or of one less than a sudra. It is advised in the authorized scriptures that a brahmana may, under awkward circumstances, accept the profession of a ksatriya or even a vaisya, but never is he to accept the profession of a sudra. Lord Krsna declared that a brahmana will never be disturbed by any adverse conditions if he scrupulously sticks to his religious principles. In conclusion, Lord Sri Krsna said, “I offer My respectful obeisances to the brahmanas and Vaisnavas, for the brahmanas are always self-satisfied and the Vaisnavas are always engaged in actual welfare activities for human society. They are the best friends of the people in general; they are free from false egoism and are always in a peaceful condition of mind.”
Srila Prabhupada, in “Krsna” book, ch. 52: Krsna, the Ranacora