Too many Sb around

It's also people. How is the gap so big? Let's look at the two conversations in real life:

.....
A: I think most people in Chengdu like to quarrel.
B: I don't want to argue ,...
.....

You said that I don't just want to talk to you about the quarrel between Chengdu people. You either agree, disagree, or ask why you think so? Let's start with this topic. Why can't you even grasp this little point of gravity.

B: I am not interested in the lunch box there, so I will be back first.
A: Don't you want to check whether the lunch box over there may be better than the lunch box here? If so, we can eat it later.
B: I am not optimistic.
A: You don't want to see how you know.
B: I'm not interested.
A: Why are you not interested?
B: Why should I be interested? (The Tone starts to increase !)
A :...

It's speechless. md Lao Tzu must stay away from such Sb in the future, and his IQ is estimated to be broken.