alt Hacker NewsBecause it's an unfalsifiable claim. If you need to bring in highly skilled people and most of them come from X Y or Z, it will be near impossible to distinguish in-group preference from a continuation of skilled immigration which for most countries that practice it, is beneficial for the economy.
Also hiring is often based on trust and networks. People refer others to their company and jobs. That trust tends to work out pretty well for companies. If people get laid off they tell their friends and their friends pass on opportunities to them or try to help them find new jobs. And people tend to make friends with others they share a culture and language with.
If you add a bunch of barriers to make companies have to hire proportional amounts of every ethnicity or culture, that slows down hiring and can be an extra regulatory burden for what reason?
There's no such requirement to hire proportional amounts of every ethnicity. There are requirements not to discriminate. Which isn't the same thing.
When companies do make an effort to give everyone a fair shot there's a tendency for mediocre white men to lose out to more qualified minorities. The companies get better employees and more diverse perspectives.
Then those white men feel spurned. They imagine they weren't hired because they're white. It's an easier pill to swallow and then the next thing you know DEI is the great Satan of low IQ white men.