Yes, I agree.
But that's not to say this won't change or it shouldn't be a war crime. Given the injuries we're seeing in Gaza there may be a movement to make it a war crime.
You need to stop. You're out of your depth and being foolish. You're clearly just trying to make any changes you can to get Israel charged with as many war crimes as possible. It's unreasonable and would have repercussions that echo far beyond this conflict.
It shouldn't be a war crime. That's insanity. There are too many legitimate, useful uses of WP to make it's use a war crime. If Israel used it deliberately on civilians or used it where proportional proportionality didn't apply, or used it where a proportional proportionality case couldn't be made, then they've already committed a war crime (and not because they used WP, it still would've been a war crime if they'd used something else). Wanting to get the use of WP designated as a war crime are the actions of people who do not understand the rules of war or the tactical uses of WP. There's a reason it was excluded.
Having Article III amended wouldn't reduce the use of WP or incindiaries. It would just have 95% of the countries that are currently signatories to the CCW withdraw from it. Do you think that's better? Have no one follow or bound by any part of the CCW just because you wanted to be able to accuse Israel of committing a war crime while committing a different war crime? If they've committed a war crime you don't need WP made a war crime too. It's just getting silly now.
AOC called for a policy, not for it to be made a war crime. And I doubt it will pass because the US government themselves signed the CCW with the stipulation that they reserve the use of incindiary munitions (which WP isn't even) in civilian areas when appropriate and when proportionality applies.
As for the Amnesty international tweet... If they dropped conventional bombs indiscriminately on civilians it would be a war crime too. Calling out the use of white phos is a red herring and irrelevant, especially since they have such a horrendously flawed understanding of it.