The Confederate flag doesn't have the same historical connections as in the US so it's seen as just generic "rebel" imagery. It's similar to the thing you see in East Asia where there's this minor fetish for Nazi imagery: it's because the uniforms look cool and they don't have the same sort of visceral reaction because of the more direct historical connection to them as do those of us from North America and Europe.

When I idly pointed out to one guy (an Inuk, as it happens) that he was flying the flag representing slave-owning assholes on his ATV, he was taken aback because he hadn't actually thought about it. It came off immediately.