It's because some zoomers in germany took the rythm and the main beat and sung it as "
Ausländer raus, Ausländer raus, Deutschland den Deutschen, Ausländer raus" (Foreigners out, foreigners out, Germany for Germans, foreigners out). And worse one of the zoomers did a flabby handed roman salute while pretending to have a mustache!
This of course led to the German government cracking down on it, the kids who filmed their singing being doxed and charged, and clubs being told not to play the song because of it's nazi connotations. It was officially banned from Oktoberfest and football stadiums.
If anything the penguin meme is the complete opposite as it is returning the song to the apolitical state it was before 2024. But of course redditors don't think like that, once a sinner always a sinner. So they have to go "AKSHUALLY THAT IS A NAZI SONG THIS IS A NAZI MEME!".