small cabin in the woods is whatever

renting out property you own as a means of income is the upper middle class part.

I know a lot of people who inherited some small place from a relative and they rent it out to supplement their income and aren't anywhere near upper middle class. What is you definition of upper middle class?

I don't believe "middle class" is anything but a psychological game.

You either have to sell your labour to someone else or you don't.

The concept of a "middle class" seems to just make half of the working class think they're better than the other half.

Land is pretty expensive in Spain.

Depends where and when and how you acquire it.

That can be said for every single purchasable thing in the world.

That is absolutely not the same thing as GP is mentioning and you know it.

>Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith.

All I know is a lot of people owning property here and there without being some upper middle class. You don't seem to understand that a lot of people even if they have low income have the desire and time and are hard working to slowly build something, which in 30 years of time becomes what you call a vacation home. I guess you are not used to manual work and think is impossible to do large things by yourself.