[jmacusa]

“Around a quarter of them is unemployed’’. And some can't write in proper English grammar either.

[ProtectOurFreedom]

Very last line of the article...

  Translated from German

If that's the only grammar mistake, then somebody is a great translator!

[Diapason]

““Around a quarter of them is unemployed’’. And some can’t write in proper English grammar either. “

That is perfectly correct British English.