The ICC arrest warrant is significant.
First it highlights Israel is an evil state committing the worst crimes possible, its an international pariah.
Next it puts the US in the same camp as Russia, as its funding and supplying weapons for Palestinian genocide. Plus providing political cover.
3rd, western countries who signed up to the ICC either support it or unwhind the world order they setup.
If they abide, it means any company arming israel could be implicated in supporting warcrimes.
The reason these american imbeciles are jumping up and down with threats because they know their politicians and companies could be sanctioned have arrest warrants issued internationaly for supporting war crimes.
The US is bringing about the demise of the international order it set and supported, all over an enthno supremacist racist state which strongly resembles modern day nazis. Is it really worth it to become internationally isolated, not taken seriously and help strengthen your adversaries?