Guys, give Naka a break. It's a youtube video, made for entertainment purposes, and his buddy put him there as a "God of Chess". Besides, Naka didn't claim "he would have been world champ if it weren't for Magnus", he said "all three of us could be world champions", which is not totally absurd... (Even Karjakin, ranked #17, almost became the world champion.)
IIRC Karjakin was not even in the top 10 (or just barely) when he won the candidates. Gelfand was of course something like #15.
So sure, there's some luck involved when they went away from candidates matches and started playing a candidates tournament.
But still, Naka's audience is largely non-players. To say "I could have been world champ if it weren't for Carlsen*" is hugely misleading. The addendum is " *and about 10 other people"
Kasparov, Anand, Kramnik, Topolov, Aronian, Svidler, Caruana, So, Ivanchuk, Grischuk.
All of those people either have a plus score against him or were / are clearly better players. They also span a few decades of activity... so at which time exactly was Naka a serious world champ contender? Maybe you and I understand he wasn't, but his viewers probably don't.
Ok, thought I had been banned lol