Earlier quoted context omitted.
An aerial drone capable of materially damaging a modern navy ship costs $1-2M a piece. Anything much cheaper doesn't have the range, survivability, or required warhead to do much more than scratch the paint. A cheap drone is only useful against soft targets. It is the reason Ukraine is scaling up heavy cruise missile production even though they already have vast numbers of cheap long-range drones. Being "cheap" isn't…
Do the Iranians have to win against a Navy ship or an oil tanker? Asymmetric warfare suggests they would ignore the well fortified ship and wreak havoc on commercial shipping to get the same result. The Strait of Hormuz is so shallow and narrow that they only really need to sink two or three tankers to shut the whole thing down.
How so? The narrowest point is still 20 miles wide. Is there a deepwater lane that's narrower than that, but still impacted with a wreck?