Yet the US has the highest immigration in the world? Ironic for a place that apparently no one favours right?
Well there is some truth that about 100 or countries are worse than the USA and thus would want to leave and come to the USA, or anywhere better.
They could go anywhere in theory but they go the USA - why?
Even if the USA had the same draw as Canada, with its size alone, ceteris paribus the USA would allow it to have 10 times the immigration of that of Canada. In other words, Canada would have to be 10 times more popular to tie the raw number of immigration that comes to the states. The current numbers are c 600 k inthe USA and 300 k to Canada - when factoring in the size of the country the USA is about 1/5 as popular as Canada or possible restricting immigration far more harshly than Canada.
Even so, there are two spots in the USA for every one in Canada - your odds are better to apply to the USA (ou can apply to both of course.)
On the above chart no a single country could mathematical beat USA immigration based on popularity and population -assuming popularity and size where the only factors.
The most important factor is that only a handful, close to two countries in the world allow large masses of immigration, and the USA is one of them.
Japan , zero immigration of non Japanese on a typical year. You can marry a Japanese and you still can't immigrate. Rare exceptions under 100 a year are made for exceptional cases
Japanese families, having come from Korean 100s of years ago have have no citizenship at all since Japan considers them Korean, and Korea considers them Japanese (as they like African Canadians know nothing of Kenya the Congo or what ever country their families once came.)
Most Asian countries have similar polices.
The raw fact is that many people come to the USA because its their best choice not because its great, but because it lets them in -Cubans for example get automatic citizenship.
Since most of the world makes pennies an hour even a job where you boss pays you less than half of your wages your doing better but the world bar is set very low - but not on the above list. Most of those countries just reject immigration out of hand at least compared to North America.