The main question is would a physical pull work on a psychic entity? Somehow I doubt it
Looking up Stardust's bio: Stardust is an Ethereal, a race of beings of pure energy and being imbued with the Power Cosmic makes Stardust immortal, allowing him to reconstitute himself if "destroyed", such as during the Annihilation Wave or having its physical structure dispersed.
Just pointing out that Iceman has frozen energy before:
Celestial Ship/Programming
Bobby literally froze the programming that was infecting Prosh. The signal was frozen. He even went on to unfreeze portions of the ship without allowing the signal to go through to other areas. According to Creshosk:
"[To freeze the signal] you'd have to be freezing electricity or electromagnetic data itself... so either electrons or even smaller than that photons. At which point itd be possible for you to freeze anything in the electromagnetic radiation spectrum, radio waves, light... uv or x-rays, gamma rays."
Stranger
Now, Stranger is a cosmic threat. On the level of power that holds being like the Silver Surfer and above. He has a physical body because he chooses to do so, not because he really needs one. He can control molecules like I control legos.
Even Jean says they are not powerful enough to defeat him:
And yet, for all his power, Iceman still manages to freeze him. And not only him, which should be impressive enough, but his energy beams. They became pure ice. Hydrogen and Oxygen contained as energy? I doubt it. He froze something that was not water based.
And he stays with the Celestial ships, keeping the Stranger immobilized while the ship shrank into itself and "teleported" to another section of the universe (Iceman made it out by turning into water vapor and reforming right before the ship totally collapsed).
*Notice I never said any conclusion about the match. I've heard good things about Stardust, who has more versitility than Firelord. I just dont know enough about him to say anything conclusive.
Gender: Male Location: Planning to take over the WORLD!
i knew he could freeze energy. could he freeze SD before SD formed the singularity (which he has done on panel)? i'd doubt it, personally.
not sure any of those scans really answer the question. didn't xorn kill black tom with a black hole? wasn't tom able to send out his consciousness into plants or something when he died? i'm reaching for any examples at all, admittedly because i can't think of any examples that would help answer the question.
i'd think that bobby's consciousness would be trapped and likely destroyed by the singularity. he would need to actually escape it's pull, and i don't think that would be possible for him. someone with more psi-powers, maybe, but since bobby's powers seem more like tranference than actual psi-power (ala marvel's usual psi's) i wouldn't think something like that would be within the scope of his power. but, i don't have examples so it's just a gut feeling.
Black Tom Cassidy's not dead. Though at the time he wasn't quite the same thing as bobby. Where' bobby's shell has been completely destroyed, during the fight with xorn Black Tom's wasn't. So they had to completely destroy his shell to get rid of him. So rather than being a psionic entity in a shell, like Booby, he was more of a monstrous regenerating plant.
Though I do have another feat of another omega level dealing with a black hole.
Well I think Blair kinda answered his own inquiry. If psionic energy can be frozen, as Bobby has done before, then Bobby, being a psionic being, should be affected by similar potent forces.