The whole thing about Americans causing housing crunches is absolutely ridiculous. The total number of Americans in Spain is something like 68k, and many of them can be assumed to live together or with Spanish spouses who would need housing themselves, so the impact on housing is a rounding error.

Another thing to remember is that a lot of these Americans in Spain are children of Spanish citizens that were born in the US to avail of US citizenship, which is not uncommon in families with the means to do it.

You are not oppressing anyone if you move to a new country and make an effort to integrate, follow their laws, and leave the country cleaner and better than you found it, or don’t leave the country and begin to contribute to its tax base and social system as soon as you can do so.

Source: American trying to integrate in France.

Ridiculous take home tests are probably the number one reason I decline to continue interview processes. If you think that building a client, an API, wiring it up to some other third party API, then deploying is a reasonable scope for an unpaid interview challenge then you are very bad at scoping software projects and the most important thing I can do for you is tell you as much.

I told one start up if I built what they asked for in the interview, I would pursue funding from their investors and launch it as a competitor- it was that similar to what their actual app did.