Denying external economic pressure affecting the USSR seems... Wishful, in a certain direction. As does denying that sanctions have helped prevent Iran from acq

Denying external economic pressure affecting the USSR seems... Wishful, in a certain direction. As does denying that sanctions have helped prevent Iran from acquiring a nuclear weapon, which it has clearly been working on for a very long time, and repeatedly failing to acquire. Regardless, you don't have an answer to Libya's nuclear program being shut down due to sanctions, and South African apartheid ending due to sanctions. Do sanctions have a 100% success rate? No. But they have a much higher success rate than jeans and heavy metal.