People didn't argue with Nichiren. They tried to kill him.
They burnt his hut at Matsubagayatsu while he was inside. They attacked him and his disciples at Komatsubara and killed one of his monks. Nichiren was cut by a sword above his eye. They exiled him to Izu Peninsular twice.
Then they ordered him to be beheaded at Tatsunokuchi beach.
When the executioner dropped his sword and ran, they exiled him to Sado Island.
He spent 3 years there.
He was allowed to return when his predictions came true. (Insurrection within the ruling clan and a threat to invade by the Mongols)
Then they tried to discourage the ordinary people from following him.
They beheaded three farmers, Jinshiro, Yagoro and Yarokuro when they refused to stop chanting Nam-Myoho-Renge-Kyo. They were told that if they gave up their faith that they could live.
Today, millions of people chant Nam-Myoho-Renge-Kyo and Nichiren is revered by the Japanese government as a saint.
It is now believed by the government that Nichiren's prayers brought about the "divine wind" that sank most of the Mongol's invading fleet.
At least buddhists don't ceremoniously drink the blood and eat the flesh of their founder. That is as insane as cannibalism.Shakyamuni (the historical Buddha of India, didn't preach his teachings to those who couldn't believe them.
He paused after beginning the Lotus Sutra to give those who lacked the ability to have faith in it, time to leave. Sariputra begged him to continue.
The expedient means chapter states:
'Then Sariputra desiring to announce this meaning over again, spoke thus in verse:
"King of the Law, Most High Honored One!
Be pleased to explain without misgiving!
In this assembly are countless beings
Who can respectfully believe."
The Buddha again [said]: "Enough, Sariputra! If I explained this matter, all the worlds of gods, men, and asuras would be startled and perplexed, and haughty Bhikshus might fall into the great pit."
Then the World-Honored One once again spoke in verse:
"Enough, enough, no need to say more
My Law is subtle and inscrutable;
Those who are haughty
On hearing would not believe it respectfully." '
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'When he had thus spoken, in the assembly some five thousand bhikshus, bhikshunis, upasakas, and upasikas straightway rose from their seats and, saluting the Buddha, withdrew. Wherefore? [Because] the root of sin in those beings was so deep and their haughty spirit tso enlarged that they imagined they had attained what they had not attained and had proved what they had not proved. In such error as this they would not stay; and the World-honored One was silent and did not try to stop them.
Thereupon the Buddha addressed Sariputra: "Now in this congregation I am free from [useless] twigs and leaves, and have nothing but all that are purely the true and real. It is good, Sariputra, that such extremely haughty ones as those are gone away. Now carefully listen and I will expound [the matter] for you." Sariputra said: "So be it, World-honored One; I desire joyfully to listen." '