Yes, of course, legal action could be potentially taken in any act of grounds of discrimination, racism, age, gender, etc, according to the laws of each country.
You seem to be confusing stereotypes with racism, etc. I never for one moment said certain races aren't polite and being polite hasn't got anything to do with discrimination, etc. It's like saying all Irish are stupid, so how could there be an intelligent Irish person, or same for other stereotypes. One doesn't need to be rude or polite to discriminate. I really don't get your thinking on this and rather not discuss this anymore. If you don't agree that's fine. I wrote about my experiences and thinking on complex issues underlying acts of violence etc.
I am.also not saying that people still won't be mean, that isn't the reason I wrote my story. I just wrote about how to create a more peaceful world by looking at ourselves.