most Iranians don't want anything to do with this shit

Exactly that mate. Problem with the definition of 'which culture OP meant' is that it's all just conjecture on both our ends.

All we can say for certain, is that OP made a statement about a culture being primitive and promptly exited stage right.

We're now all left here farting over whether they were talking about all Iranians, all Muslims, or a specific subset of Muslim culture with their blanket statement.

Dehumanisation based on culture/ethnicity/race etc... is a tried and tested fascist playbook that at best is designed to divide the working classes, but can lead to far worse situations, like ethnic cleansing and genocide.

I'm certainly no authority on the matter, I just think it's best to err against using such language, Lest we play into our oppressors hands and so forth.