Like what exactly is culture doing to prevent humanity from moving forward? As long as cultures aren't breaking any universal taboos then they should be fine. Things like no killing, no incest, no raping and etc. Things that can be abused by corporations and companies are a fault of capitalism not the culture. The culture is a victim, not the fault. A lot of religions are tied to cultures and when a religious matter is involved we should just blame the religion and no the culture. Like I said, the borders of a country is meant to keep the money in and the free loaders out. Just look at the Catalonia Spain crisis where Catalonians are wealthy and don't want to give money to the poorer parts of Spain. Again, they want to draw an imaginary border to keep their money in and leave the Spanish people to eat cake. I don't agree with this decision with the Catalonians but it certainly isn't a culture issue but a financial one. I guarantee you that if California were to pay taxes for majority of Americans you can bet they'll want to be independent as well.
Now if the work was mostly automated and we all had a Universal Basic Income then nobody would give a crap about borders.