You're not going to find a specialist in "Whole sub designs and manufacture" anymore than you could kidnap one person who would teach you how to build the space shuttle. You'd need to kidnap teams of specialists, which I would assume might draw international attention.
Insane. I don't doubt that legalizing drugs would have relatively short-term impacts as some people who would have otherwise never tried them, try them, and some of those become hooked. How anyone can look at that, and compare it to the insane and eternal war we've chosen instead, and find the war a better choice is baffling to me.
One cartel had a large-scale meshnet.