I haven’t seen that poster but I have seen others on various platforms portray Europe as Utopian and the rest of the world as an unlivable hellscape. Even their political class cannot help themselves: https://www.euronews.com/my-europe/2022/10/19/josep-borrell-apologises-for-controversial-garden-vs-jungle-metaphor-but-stands-his-ground

Despite Europe’s centuries long parasitic relationship with the rest of humanity they still think that they are the good guys while everyone else is the problem.