People say Canada isn't as lovely as they pretend. They show the world they are nice, so people will come to their land and work for them. They need workers.

This is maybe somewhat true. However, we need to see the whole scenario, not just one page. People can stay in Canada and become Canadian. Then they can vote for or select the prime minister of Canada. This is a big thing to share.

There are many countries where you can live for as many years as you can work. After that, no matter how many generations you are living there, they will kick you out. Forget about voting or any other rights.