Might be strange, but is true

Culture is a real thing. And people in a country share one.

See Australia, yeah nah.

Indeed, but culture is not the answer to the question asked. The person bringing it in is attempting to explain personality traits with race and culture. A dangerous approach, usually employed by inexperienced folks.

"French" isn't a racial trait - it's a teeming blob of culture with many facets and internal differences with a distinction albeit some overlap to other EU and global cultures.

Please don't drag "race" into a comment that clearly addresses cultural distinctions from the outset.

Please read the definition of the word race and try not to make everything about it. Try and work with more diverse people so you can observe there are strong similarities regardless of race, instead of shutting yourself in a small bubble that explains everything around based on that.

The OP comment here is clearly discussing culture and not the (say) Britannica definition of race.

You're the person that has raised the notion of race and started waving it about like Boris Johnson with a dead cat.

I did, because op is explaining personality traits by means of race. A narrow view of the world.

You're confused, OP is explaining culture differences in places with different cultures.

No race was brought into this until you piped up and dragged it in.

This post leads me to believe you don't have much experience with people from diverse backgrounds.

You should see how different 'white people' are on average every few hundred miles in Europe

Looking different and having different customs does mean having different psychologies. If anything i believe it’s you who hasnt been working with people of diverse backgrounds, otherwise you’d know personality traits are shared among cultures and ethnicities. Otherwise you’d have a different psychology manual for each nation and ethnicity. The question original question is asking about why some people are beating the bush when discussing topics, not how it’s customary to express disagreement. But even that is shared between cultures and the more you work with people of different backgrounds the more you know its the same.

I agree you don't want to stretch the cultural too far, or you will end up essentializing people. There is obviously a lot of diversity within each culture. You don't want to treat people just based on their culture: it would be morally repugnant. But in my experience at least, ignoring the culture will cause a lot of issues as well.