Gollum's sacrifice

[Lotrelf]

Frodo too would then probably, if not attacked, have had to take the same way: cast himself with the Ring into the abyss. If not he would of course have completely failed.

Isn't he saying that Frodo would have had to take the same way, instead Frodo would have taken the same way? And if he wouldn't have done(sacrificing himself), he would have failed completely.

Originally Posted by Zigùr

We can see here that in this case destroying the Ring has aselfishaspect to it: not destroying the Ring to save the people of Middle-earth, but purely to spite Sauron and serve one's own (corrupt) self-interest.

Would you please elaborate? In these circumstances, I do not think Frodo claimed the Ring, it was the Ring that claimed him instead. If Frodo was really going to commit suicide how it becomes selfish?