would lovelovelove to hear ur take on the rage aspect in general.
You've actually asked me about my favorite aspect and I will GLADLY take this opportunity to ramble about it (and, I suppose, touch a bit on its inverse as well). I actually wish I was this aspect instead sometimes; I present as very punk in my offline life and every Ragebound I've met has always been the most delightful company I've ever kept. (I suppose that might also be a very Heartbound thing to wish for, to be of another aspect...)
Of the twelve aspects, I will argue that Rage and Hope are the most commonly and grossly misunderstood. When they are flattened into one dimensional concepts, they are flattened into words that are not even in the realm of correct. Because of what we see in canon, Rage and Hope tend to get flattened into the "angry aspect" and the "positive aspect". These are incorrect understandings. Hope is about ideology and the systems built by them (such as government, or organized religion). Rage is about activism and digging out the truth. It is a very active aspect.
From The Extended Zodiac, I pulled these keywords from the Rage Aspect description. These would be the "canon" traits; they are what I adhere to when analyzing, but it should also be understood that this concept encompasses much more to do with than these keywords. Its "vibe", if you will, is much more than what is written.
TEZ Rage Keywords: Chaos, contempt, truth-seekers, doubters, stubborn, volatile, unpredictable, original, revolutionary, fearless, (cruel, uncompromising, vicious)
The words I chose to represent Rage in my analyses of the classpects are "Skepticism, Truth-seeking, Rebellion, Stubbornness". Like the other aspects, Rage is not an inherently good or bad aspect; it is neutral in its purest form.
Rage is what brings change. It is rebellion against unfair government systems, it is breaking free of internal biases, it is going out and finding the truth outside of the propaganda you have been fed. Rage aligns with punk very well, and I would be willing to argue that many of those in the punk subculture are Ragebound or know several Ragebound, and this is because to be punk is to rebel against wider societal views. You'll find many queer people in the punk subculture, for example, even if they are not Ragebound, because of how wider society views queer people.
Not all punks are Ragebound, and not all Rage is punk (though, much of it is). Rage is also activism. It is organized rallies and protests. It is essays that carefully deconstruct internal biases and point out what is and isn't propaganda. It is not believing what you are told about something because you'd rather get first hand experience or research it yourself than hear it from the mouth of anyone else.
I cannot speak of Gamzee and Kurloz as they are presented in canon, because... their characters were either written very messily or just not written at all. They are both destroyer classes, which tends to skew the understanding of an aspect as well. However, I would think that Gamzee and Kurloz's arcs, if written out with intentions of having them be properly developed as characters, would include becoming aware that their beliefs were built on faulty premises, turning against their cult beliefs, and tearing it down; using Rage to destroy what had (passively or actively) destroyed them.
(I would like to joke that Gamzee and Kurloz had to be written poorly. If they were ever written as a fully realized Bard of Rage or Prince of Rage, Homestuck would have been over the moment they accepted their true aspect and began using it to destroy the Condesce and Lord English. Those two classpects are particularly powerful.)