DANGER- MUST SILENCE said:
"Schwarzenegger moved to the US and immediately began training in Gold's Gym in Venice, LA. That means he went directly into an English-speaking environment, where he had loads of free time to seek clarification of words he didn't understand. His lifestyle afforded him the freedom and flexibility to make the English he was surrounded by comprehensible."
You fail to acknowledge what Ah-nold himself said about what helped him learn: watching English television and movies, reading English books, and doing everything within his power to avoid speaking German, even when he was with people who spoke German. Since he probably wasn't watching TV or reading while lifting weights, his advice is sound, but when he attempts to help people by telling them to avoid exposing themselves entirely to telemundo or Univision, he gets called a racist.
"And if you want to encourage integration, you don't put the onus on the immigrant to figure out how."
Yes, you do. When someone immigrates to a new country, the onus is on them to integrate to the new country, not on the new country to integrate to their needs and desires. That's like saying Police in western countries should turn a blind eye to "honor killings" or domestic violence, since the onus is on them to accommodate the culture of the immigrants, not the other way around.
Another example: Minneapolis/St. Paul has the highest population of Somali immigrants in the US. Many of them work as cab drivers. Some years ago, there was a big problem because many of the cab drivers who worked at the airport were refusing to pick up customers who had alcohol on them (that they purchased at the duty-free shop) saying it violated their religious beliefs. The solution? The cab drivers were told: too bad, pick up the customers or quit. Simple solution: people don't exist to accommodate your religious or cultural beliefs. Maybe in Somalia that would have been acceptable, but this isn't Somalia.
"But it also has to be an open and robust society that can tolerate a little cultural variation without the locals throwing racist tantrums"
Having a belief that someone who immigrates to a country should put forth an effort to learn the official language is hardly a "racist tantrum". Actually, race literally has no bearing, as the word "immigrant" is not synonymous with any particular ethnic group.
Understand your point on KSA vs. UAE, but KSA is so insanely different from a western European Secular Democracy that they are literally incomparable. Something as simple as "you need to try and learn the native language to get welfare benefits" is not even in the same stratosphere as "if you kiss a woman in public we will execute you".
As far as I'm concerned, if you wish to move to a new country and not even attempt to learn the native tongue and reject the culture, knock yourself out. But quit acting like said country somehow owes you something when you won't lift a finger for them.