You are confusing illegal immigration with legal immigration. Canada has a far superior system of legal immigration. Unfortunately, the author conflates the US guest worker programs with permanent legal immigration. Here is what he said:
But the whole issue of immigration is far less politicized, and there’s a broad understanding that skilled foreign workers help the economy. Canada actually recruits immigrants, part of a deliberate effort to attract talented foreigners most likely to contribute to economic growth. In the United States, the quota for skilled immigrants is far below the number U.S. firms would hire if they could get them. Despite appeals from many businesses, Congress is paralyzed on reforms that would let more skilled immigrants in, partly because that issue gets conflated with separate reforms aimed at stemming the flow of unskilled illegals.
Canada has a merit based system for permanent legal immigration. We have a kinship system for the 1.1 million legal permanent immigrants who enter annually. An estimated 12% of legal immigrants are merit based--the rest is based on sponsorship from family members, i.e, chain migration. 20% of legal permanent immigrants lack even a high school degree. 87% of them are minorities as classified by the USG.
We bring in 650,000 guest workers a year on temporary work visas. We would not need most guest worker programs if we went to a merit based immigration system.
The vast majority of US legal immigrants come from the Third World. They are changing this country demographically and electorally. Immigrants and minorities vote more than two to one Democrat. In 1970 one in 21 in this country was foreign born; today it is one in 8, the highest in 90 years; and within a decade it will be one in 7, the highest in our history. Since 1990 over 25 million legal immigrants have entered the US during the two highest decades of immigration in US history.
The current breakdown in Canada is
76.7% European
14.2% Asian
4.3% Aboriginal
2.9% Black
1.2% Latin American
0.5% Multiracial
0.3% Other