that the practice of primogeniture—where only the eldest son inherited property—forced younger sons to seek opportunities and land elsewhere.

Yes, that’s a possibility.

by which I mean mutual respect and reciprocal non-violence among fellow human beings.

Not sure. Maybe, cook until black? Also, kari meaning meat dish survives only in some parts of North Karnataka, I suppose.

More common usage in all regions is for the leaves used in Kari or kadi, kari bevu
kadi patta

But hasn’t it changed in Telugu to కూర?

I agree that the caste system has been completely obscured.