If importing people from other country's is good for our economy then what are these immigrants doing to the countries that they left....obviously sending their economies into a downward spiral. Imagine if we didn't have any migrant intake from 1940 onwards, there would be no need for a huge expansion of the utilities, or infrastructure , saving the govt. billions in expenditure and the associated interest costs from borrowing that money, this could result in a much lower tax rate and therefore a better standard of living.
The answer is that they want to replace white people with gullible imports because the majority of these migrants have a much lower I.Q. than the majority of white people so are easier to govern/control.
