The weapons need to go first without question. But I think that the power stuff might realistically be needed badly for us to put as much of a dent as possible into getting fossil fuels out of use on the grids. There are less problematic options that are around (Thorium is the one I have seen), and of course China is doing some major progress towards fusion which would be massively game changing. This isn't to say that we shouldn't use renewable options like geothermal, wind, tidal, etc..
But I think the threat of MAD is that main thing that needs to be stopped. The threat of MAD is not effective if a armed nation refuses to take an L if they fuck around and find themselves losing land fast. Israel is currently the big threat for actually using a nuke as they would rather take everyone out as they find out that their military isn't as good as they claim. They are starting wars on multiple fronts and are not a large (fake) nation. They are also ran by a very similar death cult of hawks that the US has had over various periods (so many mf-ers were wanting to use shit the moment a leftist party gained support anywhere).
Sadly I don't know how we could actually remove all weapons. As all of the current holders would most certainly keep some hidden. And they would say that it was "needed" because "what if the others don't actually do it???" headspace.
The idea of bailouts for any large corp/bank in the US is bullshit full-stop. The US government's constant and ruthless attacks on AES and really any other nations that nationalize such large and crucial companies show why bailouts shouldn't happen. All the companies/banks that were massively bailed out in 2008 (or any other time) didn't have requirements that money had to be paid back (with or without interest).
We saw how the rich fucks and their bootlickers took that money and enriched themselves while purging real working people and no pay rises for workers that were kept. For a nation that cheerleads how fucking beautiful and superior capitalism and free markets are. The idea of rewarding huge corps for over promising and fucking it up while keeping the barriers up from smaller or new companies is also fucked. It shows that the true final form of capitalism is private for-profit companies removing all functionally meaningful competition and being monopolies.
Which is basically what all cyberpunk dystopian media depicts when showing huge mega-corps that wield the power of nation-states over even the actual nations they operate within. Shit like this is one of the most obvious examples as to why systems like the US can't actually fix issues and huge depressions caused by big corps. The moment that any private (both publicly and privately traded)/for-profit company is allowed to be labeled as "too big to fail," it is time for that company to be nationalized and placed under similar control as corps in places like China.
Should also require that the leadership and all board members/major share holders be given death sentences for requiring money that keeps being taken away from public services. And all that is before the crimes of purging workers and giving themselves huge bonuses while workers are paid shit.