Speaking or writing on Caste is considered as near sinful by the nouveau Intelligentsia and literati.
Doing either of this attracts the label,
Anti secular ( Till date I have not understood what this term means, it changes its hues on one’s whims!)
But facts must be faced.
Before the dawn of Civilization, Man was living in the wilderness, at the mercy of the Elements.
He ate whathe could gather from Nature.
He found Animals living, seeking shelter from the elements in Caves.
In the process he learnt to kill animals and eat them
He developed implements to kill the animals.
He learned that to keep himself safe from the animals and to hunt ferocious animals , he needed the help of fellow Humans.
He liaised with them , started living with them,, not accommodating at first, and then learnt that he had to accommodate.
During the course of this, he copulated, tried various combinations, Polyandry,Polygamy,Lesbianism and Homosexuality before finally arriving at Monogamy.
At first, he formed a Group among the inmates of the Cave in which he was living, then this expanded to a Group of Caves, then a forest are and the Forest.
Even now we do.
Those who declare that they are an Island , are’/can live independently of others usually declare so when they every one around/with them or they have no option to be with any body.
As is in any relationship , there is always a certain amount of give and take.
Man became comfortable when he had to adjust the least and be with people with whom most Common interest.
Based on this some common ground rules, based on certain values like the style of eating; speaking, type of comfortable behaviour and practices, which later became Customs and Mores.
These Customs and Mores became the instruments of Social Control and Social Stability.
Over a period of time, communities became Tribes, Tribes turned into Societies with Stricter laws of Social Control, based on Common interest.
Even to-day we follow this, though by some other names.
You have Politicians as a flock, Doctors,Lawyers, Judges,Teachers, IT Professionals and the like.
This is based on common grounds.
And a necessity which is determined by the environment and economic parity and common values and habits.
When on a Mission to Space. Earth is our Home and we are all one.
When you come down to earth, you belong to a Continent,Nation,State,District,Town,Street and Your Home , Family
And finally yourself.
It is in our self-interest we organised ourselves into a Group.
We may not like this, but there is no Altruism is involved here.
Altruism is enlightened self-interest when we do to others what we want them to do unto us,
And conversely we desist from doing to others what we do not like the others to do unto us.
So the Customs.Practices, Mores are stabilized and those with the same values stick together.
This is how the Society and laws governing the Society are formed.
How does Caste come into this?
Caste system is scientific.
Emerging Caste System in India.