I remember back when Iran first suggested using mass speedboat attacks. The USN harrumphed some concern, then soon announced “no problem”, in soft tones. I assume that, send a hundred or send a thousand, it won’t matter.
They will become little more than finely chopped flotsam.
There is a slight addition to the speedboats. Iran has a large amount of mini-subs that were purchased from North Korea.Ghadir class and Yono class mini submarines to be exact.A Yono class submarine was involved in the Cheonen affair in the Korean peninsula.