> So can you name a multicultural city according to your definition?

Dubai perhaps. The clash between the rich, western expat communities, the rich native communities, and the poor mostly Asian labourer communities is severe, and there are actual disagreements about basic norms.

> I get the feeling your sentiment comes from never having lived in an actual monoculture

I have absolutely lived in what you are calling monocultures. I've lived in small rural farming towns with a populations of less than 800.

Where we disagree is in the meaning of culture. Adding a chinese restaurant to a small town doesn't make it more multicultural or diverse in my view.

> Dubai perhaps. The clash between the rich, western expat communities, the rich native communities, and the poor mostly Asian labourer communities is severe, and there are actual disagreements about basic norms.

Except those groups never interact with each other. The implicit statement in a city being multicultural, is that as an inhabitant you will interact with these different cultures. I've never been to Dubai, but I strongly doubt you are going to get close with any Arabs or Asian labourers if you live there. I know someone who moved to Jerusalem, I was thinking maybe you would pick that city as an example, but I've heard that again the different communities live very separate lives, and they actively avoid interacting with each other.