Why did Feanor's sons take the Oath?

[with-rainfall.livejournal.com]

With all the discussion/speculation going on about the elves' motivations at Alqualonde, I'd like to throw this question out there: Why did Feanor's sons feel the need to simultaneously leap to his side and take the Oath? Was it truly a "madness" caused by grief over the death of their grandfather, family loyalty and Feanor's speeches? Was it an obligation to be by their father's side, or a sense of injustice, or simply the quasi-magical lure of the Silmarils? Was it more hesitant than the text paints it?

All of these? Or is there a simpler explanation, as in this Silmarillion/Good Omens fanfic?

Comments

[keiliss.livejournal.com]

*And Maedhros turned to Maglor and said, 'How about you?' and handed him the notecard with the words written on it, which Maglor had trouble reading in the torchlight but *

Okay, I know I'm shallow, but I would so devour that fic!

It's not my time or space, but I've always thought they had no idea what they were getting themselves into? People's grandfathers didn't get murdered in Paradise. The lights didn't tend suddenly to go out either. It was shocking and upsetting (and high, high drama for a couple of those boys) and Feanor was beside himself and whipping up the testosterone. I saw it as him swearing the Oath and everyone else falling in behind with 'I do so solemnly swear upon my blood and in the name of the One' or whatever and not having a blind clue what that meant other than they were crossing the water and they were going to kick Morgoth's ass.

Hindsight is always twenty-twenty --- it wouldn't seem quite as big an ask as it proved and at the time no one knew about exile and killing elves who weren't followers of Morgoth, just decent people with their own ways and priorities. It's struck me they were a bit like all those young British boys, going off to fight in WW1 and worrying it'd be over before Christmas, before they could have their Big Adventure. And then there was the Somme.