What Would the World be Like If Everyone Have the Same Opinions?

There is a lot of discussion in the world due to different ideas and thoughts, but what would it be like if everyone agreed on the same issue? At first, almost everyone thinks that there will be no more discussions, but this may have negative consequences. For example, in the beginning, life would be very boring and everyone would agree to the same idea without thinking. When we think about it, the things that actually add color to life are small arguments. Of course, I am not advocating for large scale discussions, but small disagreements make life a little more livable and fun. Everyone needs to think about and brainstorm some different ideas from time to time.