I didn't say it is "Terrorism" I said "Economic Terrorism". Economic sanctions by definition are indiscriminate. Now there is a shortage of some cancer and MS medication in Iran and people are dying because of it. Even though the medications are not sanctioned, the financial transactions are sanctioned and these medications cannot be purchased easily. How isn't this violence? According to the UN, sanctions on food and medication is a crime against humanity. We have seen this period of sever sanctions on Iraq in the disguise of oil for food program. We know how it ended.
I don't want to justify the actions of Iranian government, in my opinion most governments are evil and power hungry. I am just pointing out that the goal of sanctions, even according to the US officials is to cause suffering for people ultimately in the goal of regime change.
Sever economic sanctions are just another tool in the empire toolbox. Be it against Iran or Cuba for example.