The complaint that the US is economically strangling Iran and therefore responsible for the humanitarian catastrophe is an old one (used for many countries) on the left. The dialectic exchange goes something like this:
Left: "US imperialist policy is crushing Iran because it refuses to tow the US neoliberal neocolonialist line."
Neoliberal: "But, all the US is doing is excluding Iran from US trade and capital flows. If Iran wants to battle US imperialism, why should the US give it the fruits of the US neoliberal order to be used against it."
Left: "US is hegemonic. One can't just opt out of the US system. Opting out means starvation."
Neoliberal: "Sure you can -f orm a BRICS group, have your own capital and trade flows. (and see how much you like trading with South Africa, Russia, Cuba and North Korea. Or Borrowing from China.)"
Left: "There is still a residue of Imperialism that can't be opted out of. The US can always raise the stakes and embargo and interdict."
Neoliberal: "Someone has to police the seas to keep shipping lanes open, and obviously they're not going to coordinate that very expensive activity with countries that seek to subvert their system and economic well-being."
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Put differently it's incoherent to blame the US for Iran's (or Cuba's or Venezuela's ) plight because those countries intentionally tried to subvert a system for which there is obviously no alternative and did so at a tremendous humanitarian cost to their own citizens and did so knowingly (or delusionally not-knowingly).
For the left's argument to be something other than performative, i.e. be a coherent affirmative policy, it must put forward a system that plausibly addresses the obvious deficiencies of the above exchange. The great crisis is that since the collapse of the USSR and the emergence of the totally dominant US system no one has. One of the things that I was (and still am) curious about is whether yourparty's formation and the superabundance of policy posturing might stimulate a deeper conversation on what it means to be on the left in 2025 from a coherent ideological perspective. So, I'm not seeing it.