Yup. And they learned English and/or made sure their children did. So today, you aren't stuck living in an immigrant enclave within your own country. The multicultural movement encourages the opposite. That's what people are complaining about.
You're right. Subsequent generations were taught English. I learned English. I also became willfully educated, and I am not threatened by a coke commercial that has people singing in different languages. Hell, they could have done the commercial in Klingon, Elvish, and Anne Hecht's secret language with God and I would have had about the same reaction. What is the big deal?
English, when viewed over the course of human history, is relatively new and nothing spectacular, really. Words were dropped. Words were added. Words were changed. It's not the same as it was when the Anglo-Saxons spoke it, and it's not even the same as what is currently spoken across the pond, from whence "America" and "English" came.
So why are you acting like they dealt a direct blow to some point of pride? It didn't even originate here!
Let's be honest about what the actual issue here is. "People" aren't complaining that immigrants are being encouraged to stay segregated by a coke ad speaking to them in their native tongue. People are complaining that these folks exist at all.
Well guess what? Your time in power is swiftly coming to a close. I know you think you are some sort of warrior of light for the greater good and it gives you a sick sort of satisfaction to be the lone voice of righteousness in a thread full of "The Left", but your efforts are wasted. People will be free, the races will mingle, and soon, we will breed all your ignorance out.