CAN ONE FUNCTION IN TORONTO INDEFINITELY KNOWING ONLY POLISH?

Are there any Polish immigrants who have lived in Toronto for 25-30 years without ever really learning English aside from the bare minimum, ie who function in Polish at home, work, in the neighbourhood, socially, at church, while shopping, etc.? I ask because I have met such people in Hamtramck, Michigan, who really had no need to learn English because everything they needed was in Polish? The same may be encountered in Chicago's Jackowo and Brooklyn's Greenpoint.

To become a canadian resident one must show proficiency in at least one of the official languages.

Is Canadian citrizenship required to live and work in Canada? It isn't in the USA.

No you can obtain permanent residence privileges which (i think) means that as long as you are in Canada for three out of every five years will persist.

But you will be unable to get permanent residence without speaking French or English