> But he wasn’t foreign, is my whole point. He was born in Britain. Or if not, passed the whole naturalisation process. Apparently he’s indistinguishable from other British people.

Naturalisation process as it currently stands. I believe the GP was alluding to the fact that that process could be changed. Though I agree the public should base their sentiment on, for example, per-capita homicide rates of various groups, and not anecdata. But graphs don't seem to move people the way stories do, and we are stuck with the public we have.

> When a white British guy, with a name like Gary or Shaun stabs a teacher, say, you get stories from people who went to school with Gary or Shaun. He was an alright guy but a bit extreme when angry, maybe. Or no one would see it coming, he was a quiet guy. Why did no one see it coming? Ah well you can’t prevent everything.

After Stephen Lawrence, a Black man, was murdered in the UK by whites, he was commemorated by, among other things, making 22 April "Stephen Lawrence Day": https://en.wikipedia.org/wiki/Murder_of_Stephen_Lawrence