Are you advocating standardized tests as a hiring process? Have you actually hired people this way? How many? How well does it work? Does it actually solve any of the problems the article at the top was talking about, or any of the comments up to this point?
Other than the writing tests, math and science standardized tests fail to predict college and especially graduate school performance very well, and it gets worse for predicting career performance. Standardized test scores absolutely correlate with SES, according to the testing agencies themselves.
https://www.act.org/content/dam/act/unsecured/documents/R160...
https://journals.sagepub.com/doi/full/10.3102/0013189X209021...
If you think Ivy League racial bias is immoral, why do you believe that “merit”, which is racially biased in the US isn’t immoral?
Graduates from Ivy League schools represent only a tiny percentage of people, and what you’re actually referring to is Harvard, not even the whole Ivy League, a lawsuit at one single school brought by people with a political agenda against Affirmative Action. This was your argument for dismissing credentials and claiming they’re a weak signal. Are you reconsidering this point of view? That seems like really thin evidence for the strength of signal that credentials do or do not provide. If you believe that standardized tests are a strong signal, and standardized tests are used for college admissions, then doesn’t it follow that gaining the degree credential is at least as strong a signal as the standardized tests you advocate?
I don’t know anything about the anonymous blog post you’ve linked to, but it’s not a scientific source, nor a meta-study, and it appears to be cherry picking and have an agenda. I certainly wouldn’t blindly adopt the “inferred” conclusions you read there, just because it all seems plausible or convincing to you. Claiming that money doesn’t affect IQ or merit or outcomes doesn’t even pass the smell test, there’s strong evidence that being poor hampers ability, even stronger if we’re talking about extreme poverty.
There are pretty well known, well documented problems with cultural bias, in the US and globally. Financial inheritance and pure financial advantage are real; money can and does overcome the disadvantages of low IQ. Being rich has immense advantages in every way. If you are convinced that social biases don’t affect merit and that being rich doesn’t influence merit dramatically, you’re certain that poor people must be poor due to IQ, and you aren’t at all curious about why some smart people believe “merit” might be a subtle way to perpetuate the ideas of Social Darwinism, then we should probably stop here.