The problem with this method is, outside of the details, this is what the governments of the refugees have been doing to the refugees. That's why they ARE refugees.
If you have a little country with big, rich resources, you might be able to build a fence. Refugees will still always find a way in. In other words, the problem isn't the refugees, the problem is the "Berlin method" their county has been creating for their own people, thereby turning them into refugees.
The problem is with the leaders of the country the refugees are fleeing from. The problem is with the one-worlders who are making trouble for the leaders who are pushing the leaders into making trouble for their own people.
An answer that is closer to reality is:
1. clean up your own government by getting the one-worlders and the crooks out of it who are making trouble for the leaders of the other country;
2. Offer an ultimatum to the government that is making the refugees, to stop making the refugees, or else;
3. If that government won't stop making refugees out of their own people, hire members of the CIA or the MOSSAD to go into that country and replace the members of that government so that the people of that country have freedom.
Oops! It is the one-worlders who beat you to it. They have already hired mercenaries like the CIA and the MOSSAD to go in there and create the mess that is causing the refugee problem in the first place.
Where do the one-worlders get their money to hire the CIA and the MOSSAD? One place. They get it from taxing the people of the so-called free countries.
The answer is for the people of all the countries to stop paying taxes. The answer is for all the people to stand up against the crooks in all their governments. This only happens when the people realize that their government leaders... government leaders of every country... are making their people slaves, no matter what country we are talking about.
ALL THE LEADERS, OF ALL THE COUNTRIES IN THE WORLD, ARE MAKING THEIR PEOPLE SALVES,
THROUGH TAXATION. Stand up against taxation. Stand up against the fiat money system. UP WITH BITCOIN. Down with fiat.