Natural and foreign are relative concepts. A good example of that is my personal perception of foreign language use in Israel. I will explain.
Hebrew is official language and, more importantly, the language of daily use for almost 75% of the residents of Israel. Thus, in contrast to pre-State Israel, speaking Hebrew is a natural act for most Israelis.
Likewise, at the college where I teach, Muslim, Christian and Druze Arabs speak Arabic to each other as they would do naturally in their own villages and families. That makes complete sense.
In my neighborhood, there are many Ethiopians. In the morning, I can hear from my office the older generation talking to each other in Amharit as they sit on the benches surrounding the playground. Many barely know Hebrew. So, Amharit as a language belongs to Israel.
Likewise, in cafes and squares, older Hungarians and Romanians sit and discuss the world in their mother tongue as they have for some 50 years, at least. As the song notes, this is a tradition.
French is also heard throughout Israel. Older immigrants from North Africa and recent ones from France are more comfortable using their mother tongue than their adopted tongue, something I can understand.
In ultra-religious neighborhoods throughout Israel, but mainly in Tel Aviv, Jerusalem, and Zefat, the street language is Yiddish because Hebrew is a holy language that should not be used on banal matters. While I would disagree politically, I have to respect a person’s choice to use a language.
All this brings us to English. Immigrants from numerous English-speaking countries have come to Israel, including myself. Many came as families with English as the language of communication in the house. Not only that, there is no need to learn Hebrew as almost everybody can understand English. Yet, for some reason, I find the use of English in the street foreign and even offensive, however illogical that is.
The only reason I can find for this feeling is that I am imposing my ideology on my fellow Anglo-Saxons. Specifically, I came to Israel determined to be Israeli and use Hebrew in my personal life. While I teach English in English, I have always spoken Hebrew with my family and friends. It is a matter of pride. I find it lazy and unacceptable for English speaking immigrants not to try to speak Hebrew. Of course, I don’t hold that standard to speakers of other languages. That is another story, isn’t it? So, I concur with Bertrand Russel who said, “"Man is a rational animal — so at least I have been told.”
[Rendering of an ancient picture of the Tower of Babel from a 2500 year old, one of four such images from http://www.dailymail.co.uk/sciencetech/article-2080375/One-earliest-drawings-Tower-Babel-ancient-stone-tablet.html]