That would only be those who come to that conclusion. What of those who don't? Are they any better or worse when time invalidates us all?
I don't want to say "Einstein said" , but Einstein said "Reality is merely an illusion, albeit a very persistent one". Plato and many other greats described the same thing. He used the famous "allegory of the cave".
If we don't believe in gravity, it still affects us. The statement that 'reality is a projection of consciousness' is either true or not. If it's true, then when we die, we become that which we were all along without knowing it - the One. What we have believed whilst in human form would make no difference to what happens after death - if it's true, that is.
Nisagardatta says that unless we have achieved liberation whilst in the human form, we will be reborn with some sort of karma to work through. Again, not saying it's true, but it would certainly explain a lot. He says this not as a belief, but from his own direct experience of a deeper level of reality.
