I do not believe that it destabilizes the global geoeconomy, because the borders are made as a control measure, but we are all human, the frontiers as some technologies have been totally centralized and have not been totally released to humanity as a control measure.
If there were no borders it is very likely that the economies among the nations would be much more dynamic, there would not be so many problems of emigration to countries that offer a substantially strong economy, such as for example the US economy, that practically for any work you take you are paid instant and for what it is.
In countries where these possibilities do not exist, they are totally exploited, and they work long hours to earn very little, and this does not make sense, because if you work a lot you must earn a lot, that is law, otherwise it is a failed communist system that does not serve nothing but to delay a nation many years ago even of yesteryear.
The masses can not do much if their rulers do not provide certain facilities to leave and exchange goods and services, as well as materials for companies and give them capitalization power.
What has been achieved is between the borders to generate a big business among those who care for it, for example Border between Colombia-Venezuela, a normal country vs a destroyed country, where the government closed border and people must pay money to go through the illegal roads, that is a rot of a communist system and failed.
Keep in mind countries where the situation is calamitous (like in Venezuela) people are guilty for that situation: they created the monsters, they believed in lies and blamed prosperous countries by envy. If they caused so much damage to their own lands, why should other countries accept them there? To take the risk of being invaded and destroyed by people who didn't care for their homeland?
Of course not everyone in a country is guilty for the currently situation and some people really don't deserve that miserable situation, but I put myself on the first world countries place to think how they feel about it. They are just caring for their countries, and thanks to borders they can do this.
Furthermore, economical barriers already don't exist, otherwise Venezuela wouldn't sell oil to Usa while blaming the imperialism.