Is there scientific evidence to substantiate the view that too many red blood cells cause jaundice?

: I thought that had been disproved years ago.
I had two clamped and cut at birth, managed third stages. One had late-onset jaundice (aka breastmilk jaundice) and literally stayed yellow until three months. I lost 500mls of blood. One was a PPH- my notes say I lost c. 500mls, but that was too much for me with that pregnancy, and I was fainting repeatedly that afternoon. With Skye, we went natural, cut after 10 minutes, which was horrible because she cried for the first time when she felt the scissors cutting her cord, and I lost less than 200mls of blood TOTAL. She was minimally jaundiced, but no more than you would expect for a baby born in late autumn after a fast labour, and it cleared within days- and nobody other than me could see it.
After this, though, I'm not keen on delayed cord clamping. I say either get the placenta out and then cut the cord, if you want to, or clamp straight away, BUT I think that the benefits to the mother of a physiological third stage of labour greatly outweigh the potential risks.