Maybe that's the difference between our opinions. While there are obvious differences between Chinese and Czech people, I see humanity as it is today as a singl

Maybe that's the difference between our opinions. While there are obvious differences between Chinese and Czech people, I see humanity as it is today as a single society - since we're sharing this world and influence each other greatly. That of course wasn't always the case and might not be the case in the future (e.g. with people living in other star systems), but right now I see it like this.