I mean there's a fic on Ao3 where someone decided to write finwe parenting and feanor using words instead of yelling, and it's called the "Not an Idiot AU"
YEP. both of them made.... many mistakes. ... I suppose... in their weak defense, there hadn't exactly been a lot of generations of elves yet for anyone to really have a good knowledge base of parenting & childhood trauma and how it affects development and adult psyches...