Yet, every time you have been wrong((https://hinduism.stackexchange.com/a/4104). What vedas says about movement of varna is that it is permitted only if it is accepted by other community which is not practical due to the incentive structure i have already explained in my previous reply. The varna conversions are cited only in the stories from the hindu holy books, it is never an independent choice. And the rules are entirely different when it comes to the highest varna in the hierarchy(i.e priest). The priest must volunteer himself to change if he feels for 16 years he has not done the duties according to his varna(NOTE: The pronoun "he" is used intentionally. Because women is considered lower that the bottom of varna system) . Now do you see why the movement b/w varna never happened and not practical.

> I suspect based on your username (John) and your use of "Britisher" that you're a Christian in India, which is likely why you continue to spread ignorance

I am born to Hindu family, but i am an atheist turned antagonistic. My motivation is to make logical conversation and convince that getting rid of varna system is better for India and not undo the progress.

> your use of "Britisher" What do you mean by this ?