I also remember reading something about the types of weapons/tactics that get banned (or heavily ostracized) tend to be ones that are effective for the smaller nations. For example, there's a landmine ban, and landmines can be used as a form of resistance against a powerful invading nations. Much more destructive aerial bombing of civilian targets is never banned, or considered a war crime, because it is a key tactic in the arsenal of the leading world powers.
I'd argue a big reason they agreed to the anti-cluster-bomb ruling is that cluster bombs in fact aren't effective. They tend to be small and cheap bombs with an individual low chance of exploding. That leads to expensive clean-up operations taking years, and is a risk factor for an army coming in to secure the bombed area. I'd argue that the risk to civilians wasn't but a blip compared to the logistical issues the bombs caused.
This is absolute nonsense.
The cluster-bomb ban (which the US has not signed) did have to do with the danger of unexploded bomblets. That is the only correct statement here.
Cluster bombs are an extremely effective weapon system. The dud rate is extremely low (the UXO problem is a combination of the massive numbers of bomblets dropped by a single cannister, as well as the relatively low terminal velocity of something that size (at those speeds the difference between "wind buffeting" and "hit the ground" is pretty narrow, especially when the ground has been softened by other explosions) and is under 1%), and the destructive power is almost impossible to match with conventional weapons. This is why Russia's been fitting cluster warheads to
everything over the last couple of decades. Pound-for-pound, no other warhead option is better for area attack.
The landmine ban was put into effect due to the massive cost in lives and treasure inflicted by the minefields of the Bosnian and Yugoslav Wars. There is no Machiavellian "monopoly on power" nonsense, and IEDs generally do not fall under the ban in any case (the ban only covers buried antipersonnel mines - IEDs are generally not buried, and are rigged to be set off by vehicles.)
Napalm (and other incendiaries) is not banned. There are heavy restrictions on when fire weapons can be used, but they have been deployed in recent conflicts, with the consensus being that this is not a violation.
Actual banned weapons and tactics are generally those that favor the great powers, not those that can only be used against them. Weapons designed to maim rather than kill (blinding lasers, for example) are an inconvenience to a great power with an excellent medical system, but are devastatingly effective against a small power that is sharply limited on medical supplies, manpower, and equipment. Any decent chemical factory can easily turn out nerve gas or asphyxiants in literal carload lots, while an insurgency or small nation would find it difficult to respond in kind.
The Geneva and Hague conventions are among the greatest achievements of mankind. Shitting on them is not a good idea.