Re: Racist?
Any email has to come from somewhere and if you're running a scam making it seem to be from somewhere safely foreign is a good idea, even if you live next door to the would-be mark. After all you don't want the plod getting involved which they might do if your text is in perfect English.
And in any case one has to abide by tradition: financial scams are obligatorily Nigerian, SEO proposals just have to be Indian etc. It would be unfair to leave the Chinese out of it - that would be discriminatory at the very least.