Oh, this is what I actually wrote my master's thesis on! In short, mostly no.

There was no traumatic reduction of socioeconomic complexity during the bronze-iron transition in China (in fact, it was very much the opposite) in contrast to areas such as Greece and Anatolia circa 1200 BC. However, the introduction and proliferation of iron-working technology did non-critically contribute to a destructive geopolitical feedback loop, so I guess there's a small morsel of parallelism in terms of violence.

Would you mind providing sources for those modern historians?

Yes! Confucius descended from the second to last king of Shang, Di Yi (帝乙), whose youngest son succeeded and ruled (incompetently) until the Zhou famously, and rather dramatically, overthrew and killed him.

Di Yi's first and second sons successively were the ones granted land by the new Zhou government according to the "Two Crownings and Three Respects" system (二王三恪) to carry on the rites of Shang. The first son's line tapered off after a while, but second son's line was the one that gave rise to most of the remaining rulers of Song and, more importantly, was the one that ultimately produced Confucius.