I wouldn't be so hard on our folk, sis. It's an ancient, though barbaric, tradition found in our whole region. Ethiopians and Eritreans practice this too. There are pretty much exact equivalents for the Tumaal, Madhiban and Yibir in Amhara, Oromo, Afar, Tigrinya and even Omotic Ari culture. The Horn of Africa has an ancient caste system similar to what was historically found in India and Japan. That is to say that people engaged in work other than agriculture (pastoralism and farming) were abhorred and maritally and socially shunned by the wider food-producing population with reer maagalo, wadaado, merchants and seafarers narrowly escaping this fate. Blacksmiths, tanners, hunters, stonemasons, carpenters, soothsayers... all shunned. Such castes honestly formed all over the world but our region is somewhat unique in treating them like second class humans.
Nobody really knows why our ancestors did this. I suspect it might be due to seeing any way of life that isn't concerned with food production as inferior or "unclean" or maybe even something of a leech on the majority of the population since these caste groups become dependent on pastoralists and farmers for food and their not exactly Sultans and Wadaads the people are happy to invite in for a cup of tea. But even so, they do a useful service for you and society so it is just odd... Maybe it's just a weird byproduct of trying to ensure these caste groups remain solidified and heriditary and it just got out of hand? I dunno.
But you're right. They're a treasure to our cultures. Look at this, yakhi:
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And that's not even close to the best out there.