Ever since my childhood, I have read that the Jati (NOT Caste) is worst creation of our ancestors. There r many who says JAATI is nt by birth, but it's by Karma, without even knowing the difference between Jaati, Varna and Caste. This has led to #IdentityCrisis.
My thread

JAATI is derived from 'Jaat', which simply means common birth.

You take a common birth in a family, which has its own KUL established at time of Vivah (dint you notice that?).

So your common birth (Jaat) is nothing but your KUL. That's why it is called as Jaati, NOT Varna

And that's what you see, there are many KULS (Jaatis) in each Varna. This Jaati is by birth. No one on this planet can change that. How can you even change your KUL?

That's why see so many Jaatis, contrary to only four Varnas.

Isn't it?

It is not always necessary that one KUL is one Jaati. Ideally it should have been, having said that when it is combined with profession, many KULS collectively became One JAATI. That's what u see, many KUL Devta/ Devi within one JAATI.