The line is coming out of northern Russia in the Arctic on the map (you can see the Kamchatka Peninsula), there's another line in the Atlantic, and it doesn't have the right amount of dashes.

Hanlon's Razor seems to apply.

swastika is pretty common holy symbol in India, since thousands of years, a few decades of nazi use is not going to change that.

My mom never heard of Germany or Nazi or World War 2. She will happily draw swastikas during festivals.

Really? You look at that, and think, "Ah, yes; they are obviously correct that this random wavy dashed line on this completely garbled map coming off of a part of "Asia" that might be China (or might be Russia, or might be nowhere in particular) is clearly representing this very specific political delineator China uses, that is U-shaped and has a specific number of dashes that the line on the map does not appear to have."

It seems to me that a map like this is a Rorschach test—you'll see in it whatever you expect to find.

Indeed why are they doing this? Just to pander to the chinese govt. That itself should warrant a ban in more places than just vietnam.