No human being is illegal
Is what is written on it. And you better are in a country where this is true. But even if you do not take it literally and 'just' apply it to a person's status, it can be bad enough.
In Germany, this summer the coalition nearly fell apart on the modalities of refugee migration within the EU.
In the Kleinwalsertal, the Austrian valley accessible by road only from Germany and not from the rest of Austria, this sticker has even more of a meaning.
Before explaining it using my second related picture, I have to admit my surprise. I know those stickers from the US. In NY spraying graffiti can be a criminal offense - in contrast to those stickers. Hence these stickers are heavily used. I did not expect this in this lovely valley in Austria.
In the mean time, you cal listen to the Toten Hosen song: Festung Europa.
Politische Street Art im Kleinwalsertal. Das überraschte mich nicht. Auch wenn mich das Thema nicht überraschte. Ist das Kleinwalsertal doch selber dereinst von Flüchtlingen besetzt - und urbar gemacht - worden.