Is English not already encouraged for immigrants to learn? Is it not already, outside of some specific fields, a necessity for doing business and having a job? Countless cities, churches, schools, and charitable organizations offer English classes geared toward recent immigrants. I know that critical thinking (or thinking of any sort) is very difficult for you, but your revelation is as groundbreaking as me “theorizing” that the earth revolves around the sun.
You’d be surprised, at how many people I come across who can barely speak English. It may encouraged, but in a big city, many slip through the cracks or just don’t care.
I sincerely doubt you leave your own house.