Why didn’t the British Empire move as a whole to the vast North America?

This is indeed an open-minded question. During the Age of Discovery and especially since the Industrial Revolution, Western countries have become the center of the world. Europe, which is fragmented and has a total area of ??about the same as China, has almost occupied most of the world. The world became colonial. Britain, which has long occupied the position of the world's most powerful country, is undoubtedly the largest colonial country. At that time, Britain's colonies all over the world made Britain's empire on which the sun never sets truly worthy of its name. Britain once occupied colonies covering more than 30 million square kilometers for a long time. . ?

France ranks second, once having more than 12 million square kilometers of colonies. The rising star Germany also has vast colonies in Africa. Even small European countries worthy of the name, such as Denmark, Belgium, the Netherlands, etc., all have colonies that are several or even dozens of times the size of their own land.

We all know that the foundation for the development of a country and a nation is the non-renewable resource - land. Therefore, the land area of ??a country determines the potential and upper limit of a country's development. With more than 30 million square kilometers of colonies, Britain almost brought the best land in the world under its rule, making Britain the world's most powerful country.

However, the UK is not invulnerable. It still has hidden worries. This hidden worry is that the UK is too small in land area and population. For the UK itself, the British Isles in Europe are not only not rich in resources, but the small islands with an area of ??only 240,000 square kilometers almost directly determine the upper limit of the UK's development. So, why didn’t Britain just move all its citizens to colonies with richer resources and a wider environment? For example, North America is dominated by British immigrants.

North America, composed of Canada, the second largest country in the world, and the United States, the fourth largest country in the world, can be described as a truly chosen land. Its vast territory, fertile land, and rich natural resources have given The unparalleled development potential of Canada and the United States has also contributed to North America becoming the most affluent and developed region today.

On the contrary, after losing most of its colonies after World War II, Britain could only retreat to the British Isles. Although Britain is still one of the top powers in the world, it is far behind its peak period. It is even more difficult to compare with the United States, the only superpower today.