People are deliberately ruining the story for others

[Niwashi]

Everyone should be considerate enough to ensure that everyone in the party can get what they're there for.
If someone's there for tomes then nobody should do anything that will prevent them from getting that tome reward.

Shared goal from all parties, therefore struck from the record. Everyone goes for mixed reasons, but tomes is always on the list.

No, if someone's there for the story, then they're almost certainly selecting the dungeon individually. The tomes (all but a trivial few that aren't enough to be anyone's goal) come from Roulette, which they're not using. It's only the veteran players re-running it through roulette who are there for the tomes.

The new players probably still want to complete the run. (That's part of the story too, after all.) But they're not after the same rewards that you are.

Now I will add another.
If someone's there for efficiency then the party should respect the player's desire and not pressure them to sit on their hands while the player goes idle in the middle of a dungeon for thirty minutes.

Except that that can't happen, because nobody would be there for "efficiency" (whatever that would even mean on its own). Not doing the run at all saves more time than skipping parts of it does. If what you actually mean is "efficiency of getting tomes", well, those tomes are the first goal I pointed out.

If all of this is too difficult of a concept to wrap your head around, party finder is available. Or FC friends. Or LS friends. or Shouts. Four options that I had mentioned before.

And I've used nearly all of those (except FC where nobody was available). But the way the group is formed isn't the issue. Party Finder, linkshells, shouts, they're no different from Duty Finder. You still need to hope someone will join who will stick with you and let you complete the whole run. And it's still just as unlikely that anyone will. (But then, I've mentioned that fact before, too.)

Plus you don't even need 8 people, just 4 apart from your own self. Because whether you like it or not, majority rules in FFXIV party disputes, and always has.

Yes, majority rules when there's a dispute. If people would be more considerate, though, and ensure everyone's goals are met, then there wouldn't be any dispute to resolve.