चण्डालो वा श्वपाको वा काले यः कश्चिदागतः।
अन्नेन पूजनीयः स्यात्परत्र हितमिच्छता।।
उचित समय पर अगर चंडाल या श्वपचभी आये तो गृहस्थको निश्चयही उनका अन्न समर्पित कर सत्कार करना चाहिए.
On timely arrival of even Chandal (Dead animal eaters) and Shvpacha (dog eaters), householder must welcome them by serving food.
Where is racism or casteism here?
If you don’t follow dharma, it is your fault! Don’t blame dharma scriptures for it!
And dharma bound duties are never stereotypes. They change with time, age, place and context.
About so called out-caste:
Yes, those who share the same living style, prefer to live together. It is for their benefit. It is for entire village’s benefits. There is no discrimination here. Even modern society prefer it. If there is any descrimination that you observe around you, it is certainly not the sign of Sanatana dharma and never prescribed as such!
The verse I shared has some more interesting supporting verses. Separate compilation post for it.