but wouldn’t that leave us unpunished for our parasitic acts towards the global south?

You're thinking in moralistic terms. Punishment is only useful insofar as it produces sustainable material conditions. Most of the terrible violent sociopaths in the West will be punished by their own working classes when they rise up.

even if we did proletarianize we still act as parasites

You need to understand this from a material perspective. How do we act as parasites? It's not an individual choice. It's a relationship. The mechanism is called Unequal Exchange. When that mechanism breaks down, it will result in the costs of commodities increasing for the West, which will fundamentally change how they survive, which will, of necessity, drive us from parasitic to symbiotic over time.

our history can’t be changed

No history can ever be changed. And everyone in the world has histories of deeds that cause harm. So anything that starts with "we would have to be able to change our history" is not a real position.

our history needs to be addressed before we can be allowed into socialist civilization, if at all

No, that's also impossible. Reparations can only be made through the socialist process. Remember, everything is a historical process. The West and Socialist Civilization are not billiard balls that bump into each. The West and Socialist Civilization are two (of many) sub-processes of Human Society which is a sub-process of The Human Species which is a sub-process of Life On Earth, etc. There's no such thing as "allowing the West into socialist civilization". The processes that cause distinction between the Oppressor and the Oppressed gets resolved dialectically, that is to say with the oppressor and oppressed acting on each other and on themselves and on their context and resolving the contradiction, ending the historical process of distinction and simultaneously returning to the higher order process as a unity (human society) AND advancing to a new historical process (global cooperation).

like you said, the animal gets violent when cornered and that’s how all of us are innately, it’s just part of being westoid and that innate violence is what concerns me

Yes, the West will lash out. It's currently lashing out. Yes, there will be reactionaries, we've known this for a long time. Yes, the reactionaries will intensify their resistance, we learned this with the USSR. Yes the reactionaries will win some victories. But, reaction is ultimately unsustainable violent resistance in support of maintenance of violent subjugation is an internally contradictory process and it will ultimately cause its own undoing. Yes, it's concerning, because the violence of the reactionaries will be brutal, devastating, pernicious, and morally revolting. But, that's all the more reason why globally we need people, like you, who are aware of these things and are able to apply a level of reflection, self-control, and empathy to support the movement for global cooperation against those that would rather destroy us all.