Honestly, I'm not convinced that just socialism alone can redeem the US, or lessen its threat to the rest of humanity, also.

I certainly believe that it is possible- and socialism is undeniably the most important revolutionary change necessary- but I also believe that there is something truly "exceptional" with the US' sordid history, that makes it in particular more of a threat to world peace and development, than any other state in history prior and, I can only imagine, in the future to come as well. This is a country which is the pinnacle of all the ills of European colonialism, manifest- one whose geopolitical position and its specific Frankenstein of ideologies and circumstances has seen it imagine up a system of forever-wars and unsurpassed neoliberalism- a country borne entirely of stolen genocided land, which has done more to further the cause of white supremacy across the world, which has done more to terrorize indigenous peoples from its own contiguous territories, to Bolivia, to Hawaii, to Palestine and beyond- which has done more to champion the causes of outright fascism, which has singlehandedly inherited the imperialist order of Europe, and which is responsible for spreading religious extremism (and racial, etc) like a plague, from its backing of Wahhabi-influenced fundamentalism (I blame the Saudis less- frankly, in a similar way to what Biden says about how the US would have "created its own Israel if it did not exist-" same goes for Wahhabism), to its own homegrown megachurches which have twisted Christianity even further than Europeans had managed in the 2~ millennia prior...

Needless to say, I think the US is exceptionally dangerous- exceptionally compromised, and more prone to genocidal, potentially world-destroying demagoguery, warmongering, and reactionaryism, than any other states (save for its fellow settler-colonial brethren which at least have the virtue of being generally smaller and less populous). I suspect there won't be any peace- perhaps, that there can't be any peace- so long as it remains "fortress America," an isolated, genocidal continent unto itself, with a vested interest borne of opportunism and racism alike to plague and destabilize the rest of humanity. In fact, I'd argue that it likely must undergo extensive reforms on much more than an economic level, to cease being such a threat to the rest of humanity, and even our species altogether and the continuation of life on earth.