> the IRGC is attacking third party nations without any specificity, that would be even more unhinged

No it wouldn't because they're targeting the EU as well as the US with this. The EU has definitely been involved, France itself has sent an aircraft carrier to the region as well as military to Saudi Arabia. Not 'direct' involvement yet, but definitely 'unfriendly' towards Iran.

It's a warning to not get anymore involved because Iran could reach beyond where their missiles can.

I think there's been a lot of US/Israeli propaganda re Iran being 'unhinged' because without them being so, none of the actions taken by the US/Israel look in any way good. Apparently it works because there's a lot more unhinged partners the US has, starting with Israel, UAE and Saudi Arabia.

Iran is deemed 'unhinged' not because it's a religious government or because it's not a democracy, it's deemed 'unhinged' because it's a thorn for Israel to achieve total dominance in the region and therefore be able to occupy Palestinian, Lebanese, Syrian etc. territory without any fuss from anyone. Remember that Iran was not a democracy prior to 1979 and the US was extremely happy with them, torture of opposition and all. It's just now they're not 'ours' so we're upset.