What does "to be white" even mean, especially when applied to a culture in which the modern primarily-American understanding of the word was completely absent? To me it seems as pointless an argument as it would be for hypothetical time-travelling ancient Romans to argue whether 21st century Americans are Roman citizens or not.
It's in principle possible to have curious conversation about divisive topics [3], but it needs to be done in an entirely different way: respectfully and with a certain gentleness towards the people on the other side, even though you strongly disagree with them, and with the motive of actually receiving information rather than lashing out in the hope of smiting and vanquishing enemies.
Because flamewars destroy the intended purpose of this site, we ban accounts that do them, regardless of what they're flaming for or against. Normally I would ban a new account that was doing this (I'm a mod here), but because you've posted about other, more on-topic things, I thought you might appreciate an explanation of the intended use of HN instead. If you read https://news.ycombinator.com/newsguidelines.html and some of the past moderation explanations I've linked to below, you'll be in a better position to make valuable contributions instead of damaging ones.
[1] https://hn.algolia.com/?dateRange=all&page=0&prefix=true&sor...
[2] https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
[3] https://hn.algolia.com/?dateRange=all&page=0&prefix=false&so...
This is more of a historical curiosity than anything else, since the right to intermarriage across the Roman ordines was restored in 445 BCE (i.e. still quite early in the Republican period).
Edit: Come to think of it, also there were also a few Roman Emperors from North Africa!
North Africa, like most of the Mediterranean, was white in Roman times. North Africa is only swarthy today in the aftermath of Arab conquest in the 7th and 8th centuries.