People are not wrong in observing Caste. In my view, what is wrong is their religion, which has inculcated this notion of Caste. If this is correct, then obviously the enemy, you must grapple with is not the people who observe Caste, but the Shastras which teach them this religion of Caste.
Why is it that a large majority of Hindus do not inter-dine and do not inter-marry? Why is it that your cause is not popular? There can be only one answer to this question, and it is that inter-dining and inter-marriage are repugnant to the beliefs and dogmas which the Hindus regard as sacred.
My social philosophy may be said to be enshrined in three words: liberty, equality and fraternity. Let no one, however, say that I have borrowed by philosophy from the French Revolution. I have not. My philosophy has roots in religion and not in political science. I have derived them from the teachings of my Master, the Buddha.
That the caste system must be abolished if the Hindu society is to be reconstructed on the basis of equality, goes without saying. Untouchability has its roots in the caste system. They cannot expect the Brahmins to rise in revolt against the caste system. Also we cannot rely upon the non-Brahmins and ask them to fight our battle.