Some years ago, our government decided on what the stupid called 'reverse racism'
Companies and institutions such as universities, had to show they had a tiny, tiny percentage of Maori in the ranks.
Why? Because for decades, bright, capable Maori had been victims of those who decided who got jobs and places at uni. Predominantly white, male and prejudiced against anyone who wasn't of their ilk. .
Some people got up on their hind legs and said this sort of discrimination was wrong.
They hadn't been as vocal about discrimination when for the previous decades, only white students were taking university places.
Why shouldn't a promising young Maori engineer have the same chances as his/her graduate peers? Under the previous system s/he didn't.
Why shouldn't a woman, a disabled person, a trans-gender person be given the same chances as everyone else if they can do the job equally well?
But the fact is, if the 'deciders' are prejudiced, they are not.
In the past, these deciders had the arrogance to bar Jews or Catholics from sports and social clubs and that changed only slowly, when public opinion changed when people began to speak out about the unfairness.
So that's why we need pro legislation, opinions and rules because when people speak out about unfairness, we begin to listen (some of us anyway) and rethink our own attitudes.
Left to our own devices, human bigotry will hold sway and win - as it has been doing for generations.
Any woman (or Catholic, or Jew, or trans-gender, or disabled person) can tell you that.