It’s not racist lol. In case you need a refresher on the definition of racism:

discrimination, prejudice, or violence against people because of their race

There’s no prejudice or discrimination at all. It doesn’t even have anything to do with the culture or language. It could really be any language that the person in the room doesn’t understand, like Klingon, Latin, or whatever. Save your energy for actually racist phrases like “Chinesium” etc