Let's say that an Indian manager hires more Indians because he feels like they are easier to work with. Now, he doesn't just hire Indians, but he is statistically more likely to do so over a large quantity of hires. Is that against the law?
There's an argument to be said that it is a euphemism for discriminatory factors, along the lines of "shared values."
> Is that against the law?
Yes when you take contracts from the federal govt.
Also, "feeling like" someone's easier to work with sounds more like unconscious bias than reality. And if a company the size of Oracle would make hire/no-hire decisions based on such impressions, it'd be a sign that they have organizational problems.
Mind you, some or maybe even most immigrants (at least from my country) have at least 3+ years experience. Job experience means more points for Immigiration NZ.