māṁ hi pārtha vyapāśritya ye 'pi syuḥ pāpa-yonayaḥ striyo vaiśyās tathā śūdrās te 'pi yānti parāṁ gatim

"O son of Prtha, those who take shelter in Me, though they be of lower birth-women, vaisyas [merchants], as well as sudras [workers]-can approach the supreme destination." (Bg. 9.32) Though having taken a low birth in human society, one who accepts Krsna as the Supreme Personality of Godhead is quite competent to go back home, back to Godhead; and one who is a bona fide candidate for going back to Godhead should not be considered lowborn, or candala. That is also a sastric injunction. As stated in Srimad-Bhagavatam (2.4.18):