Comment by pjc50
Across most of the world, people who do not share a common native language will speak English to each other. London is no different.
What this is, is a racist meme pretending that the significant fraction of immigrants to London who may occasionally speak their native language to each other in public is somehow a problem. Exactly equivalent to Americans panicking about Spanish.
I think the "Exactly equivalent to Americans panicking about Spanish" comparison is good. Thanks!