There is a pattern here, and part of it looks like this. You contemplate an idea X and it bothers you. You circulate your concerns among a number of people who are good at thinking and interested in ideas like X. None of them is bothered by it; none of them seems to see it the same way as you do. And, in every case, you conclude that all those people have failed to understand your idea.

Now, I think there are two kinds of explanation for this. First, we have (to put it crudely) the ones in which you are right and everyone else is wrong.

• These ideas are so horrifying that almost everyone flinches away from them mentally before they can really engage with them. The other people you talk to about X might be able to understand it, but they won't.
• You are super-abnormally good at understanding these things, and the other people you talk to about X simply don't have the cognitive horsepower to understand it.
• X is really hard to express (in general, or for you in particular) and on these occasions you have not been successful. So, while the other people could have understood X, they haven't yet had it explained clearly enough.

And then we have (to put it crudely, again) the ones in which you are wrong and everyone else is right. They all begin "You have, for whatever reason, become unduly upset about X", and continue:

• ... Others don't feel the same, and so they don't pay as much attention to X as you think they should.
• ... Now if anyone offers their own analysis of X and it somehow conflicts with (or merely doesn't include) that feeling of upset-ness, it will seem wrong to you.
• ... Other people see that you're upset, and what they say about X is aimed at some version of X they've thought of that would justify the upset-ness. But your upset-ness actually has other causes, so they're inventing versions of X that don't match yours.

For obvious reasons you will be more inclined to endorse the first kind of explanation. But an "outside view" suggests that the second kind is more likely.

Possibly relevant: Existential Angst Factory. Your situation is clearly not exactly the same as the one described there, but you should consider the possibility that your unusually dramatic reaction to these ideas is at least partly the result of something other than being the only person who truly understands them.

Now, considering the only one of those discussions that I've been in recently: I think you are simply incorrect to say that no one who disagreed with you in the Dust Theory thread actually understands Dust Theory. What might be true, though, is that you have (so to speak) your own private version of Dust Theory, and no one understands it because you haven't explained it and have just kept saying "Dust Theory".