Saying Dream killed Tommy as an attempt to prove he was "worth keeping alive" is literally just. Not true? If his goal was SOLELY to prove the revive book was real he would've just. Revived the cat. It would've proven it was real along with bringing smth dream enjoyed back to life. It is literally that easy
I think proving the revive book was real was a big motivator, but he said in his own words it was to "prove a point". This was not an action done out of fear- this was an action done out of a desire to prove the revive book was real AND exercise his power over Tommy.
I can buy ghostbur's murder as a self defense kind of thing- desperation and fear accelerating an already traumatized man to do something unspeakable. But calling Tommy's death a solely fear driven action is straight up not true and you can see that in the fact that he suggested experimenting on tommy with the revive book after he was revived. That's not something you do out of fear
c!Dream had revived Friend and Henry beforehand, however he himself admitted that he didn't know if the revive book was going to work. Seeing as people seem to go to limbo, and we don't know exactly what happens with mobs, the process could certainly be more complicated or easy to mess up.
c!Dream and c!Tommy had been in the room for weeks, and when did c!Dream start hitting c!Tommy (back) and ended up killing him?
Was it when c!Tommy repeatedly punched him away from food? Was it when he hit him while verbally attacking him? No, c!Dream didn't even retaliate, and I watched the scene enough to know that. c!Tommy told c!Dream not to punch him, and he didn't, he told him to step back, and he did - he did everything c!Tommy asked of him while quietly writing with no attempts to engage.
Was it when c!Tommy started punching the cat? No, c!Dream didn't even start hitting him then, he only stood directly in front of the cat in order to take the blows, and begged c!Tommy not to hurt it.
It was only when c!Tommy said that he could kill him, directly threatened his life, then told him the only reason for keeping him alive didn't matter to him because he didn't believe it.
c!Dream attacking him was a direct result of that. It was a reaction, and the point that he was proving was that he shouldn't be killed.
Proving he could revive people was the point. He's said that multiple times. He never tried to "exercise power over Tommy", that's a completely baseless assumption that doesn't even make sense.
It was an action done, if not out of fear, purely out of a desire to survive. It seemed like the only way to be kept alive. Even then, c!Dream doesn't take chances, not in this situation.
His suggestions for working together and "becoming immortal" are purely irrational, and were not his initial reasons for killing c!Tommy. That isn't something you do out of fear, true, that is something you do when you're being starved with no power over your own life and are understandably losing it in a torture chamber.
You're just denying canon at this point because you want to hammer in a point that isn't true.
I firmly stand by the fact that nothing could've warranted c!Tommy being murdered - even if his death was temporary - however, if people use this case to further villainize a suffering individual, or to push the agenda that "c!Dream is still dangerous / actively trying to hurt c!Tommy!", I'm afraid I'll have to play the devil's advocate.