It's not worth arguing with a frequentist mindset to success. It is clear that better starting positions in life lead to better outcomes. It's even unfair and getting worse. This isn't genius level analysis.

The issue is that using averages, making blanket statements, and dismissing exceptions to the averages as pure luck and statistical happenstance is a pretty common form of frequentist bias and leads to even worse policy, if used as justification for a remedy.

Exceptions are routinely waved away as statistical noise or survivorship bias, rather than taking a more nuanced and Bayesian look at the exceptions.

For all the libertarian bias Hacker News is accused of, this particular issue is exceptionally neoliberal/socialist in nature and persists on the site for some odd reason.