In the US the umbilical cord is commonly clamped before the completion of placental transfusion. This causes hypoxic brain damage, and via lowered ferritin, leaves the infant more susceptible to free radical damage. One of ferritin's major roles is to manage free iron, and thus fenton reaction mediated autoxidation. H2O2 in the presence of free iron can rapidly become hydroxyl radical via this mechanism. Lowered ferritin is no small thing. There are few if any cases where this is NOT contraindicated. In any case where it's "necessary", it was only made such due to some other incorrect action taken during birth. All these problems are chained together.

https://www.ncbi.nlm.nih.gov/pubmed/30473033
https://www.ncbi.nlm.nih.gov/pubmed/30278462
https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD004074.pub3/references
https://www.ncbi.nlm.nih.gov/pubmed/30193752
https://www.ncbi.nlm.nih.gov/pubmed/30598672
https://www.ncbi.nlm.nih.gov/pubmed/29101631
https://www.ncbi.nlm.nih.gov/pubmed/30208504

https://www.ncbi.nlm.nih.gov/pubmed/27654493

https://www.ncbi.nlm.nih.gov/pubmed/30355293

This cannot continue to be ignored. You can try to say I'm trolling, spamming, or whatever, but all will know what's going on. And this isn't even the full extent of it.