How do Buddhists behave when someone considers us to be the most right Buddhism and the other is wrong?

How do Buddhists behave when someone considers us to be the most right Buddhism and the other is wrong?

No Buddhist understands the teaching of the Buddha thinking that other religions are wrong. No one who has made an effort to learn other religions with an open mind can think like that too. The first thing you can know when you learn different religions is how much in common. All religions admit that the human condition now is unsatisfactory. 

Everyone believes that a change in thinking and behavior is needed to improve the current human situation. 

Everything teaches ethics-

Ethics include love, compassion, patience, generosity and social responsibility and all accepting existence as Absolute. They use different languages, different names and different symbols to describe and describe these things. Only when a person is attached to a narrow mind in the way of seeing them then intolerance, arrogance and self-righteousness will appear.

Imagine the British, French, Chinese and Indonesian all looking at a cup. 

The British would say, "That's a cup." The French will answer, "No. "It was a bag". Then the Chinese comment, "You're both wrong. It was a “pei". 

Finally indonesian are laughing at them and said, "You guys are stupid. 

"That was a cup". Then the British opened the dictionary and showed it to others. “I can prove it was a cup. 

My dictionary says so". “If so your dictionary is wrong”, said the French, “because my dictionary clearly states it is a tasse”. The Chinese mocked; “My dictionary said it was a ‘pei’ and my dictionary was thousands years older than yours because my dictionary is definitely true. And yet more people speaking Chinese compared to other languages, because it must be “pei". While we were arming and debating, one more person came and drank from that cup and said to another, "Whatever it is, cup, cup, tasse, pei or cup, the function of this cup is to hold water so it can be drinkable. 

Stop arguing and drinking, stop poking it and quench your thirst”. This is the attitude of Buddhism towards other religions.

Source:

Begging Shravasti Dhammika. 2012. Good Question Good Answer

DhammaCitta Press