I'm talking about citizenship. I'm not familiar with every single country's policies, but it's simply a fact that the USA is more accommodating to immigrants than Germany and France, for example. France for instance barely provides support for English speakers, god forbid any other country.

An immigrant who finds themselves in New York City, to contrast, will see that the city provides government assistance in dozens of languages and proof of address and things of that nature aren't even required.

Maybe some bigger countries have this expectation that most people talk their main language and movies are dubbed etc. Certainly also USA.

Smaller countries this is not the case. For example in nordic countries you can get by quite fine with English.

Hiring IT professionals is easy wherever you go. Hell even Japan and Korea have a highway for IT professional visa application. In general "hiring special knowledge worker X from abroad" is always easy, as a employer.

The hard situation is "a person with knowledge X moving to country Y and applying for work", when they have to apply for work no different than locals yet the work visa requirement attached to the resume turns employers away because it's a damn hassle.

You simply can't grasp that from the employer side