I don't expect everyone to know German, nor do I expect everyone to use Google translate to figure out what the guy is saying in this cartoon. Don't worry. I got you. I'll be your official German translator. "Erwarten wir besuch" means "are we expecting visitors?" Look at that. Now you know German!
Here we have two hugely fat people on a very small piece of land. That's how it can feel looking at poorer countries compared to countries with more money. There would be a lot more room on that float if they would take up less space and use it more efficiently. As what we can assume are immigrants are coming towards them, it's obvious what's wasteful and what's not. The argument then is whether these two fat people should have to worry about others.