Could autonomous cargo transport vessels with sails be a solution to global trade?

As energy continues to become more expensive, the global supply chain continues to become more distributed, and autonomous technologies improve, could fleets of sail-powered drone ships become the predominant mechanism for the transoceanic transportation of the world’s goods?

Obviously the cost of fuel would be less, as would the need for personnel to crew the ships. In theory, there would be harbor-based support crews that would tow such crafts into place to load/unload. What are the challenges that such a solution would face? piracy? navigational challenges? logistics of moving stuff more slowly?

The autonomy issues are greatly reduced on the open ocean in many respects. You don’t have busy city streets with dozens of people and vehicles to account for, all vessels would have transponders to help communicate position and the density of stuff is way less than on roads.

I’m not a sailor, so I may not fully appreciate how difficult it would be to automate sailboat operation, but with access to weather and storm locations, wind speeds/directions, GPS, ocean currents, wave swell amplitude, direction and shape and other data, it seems like writing the code for a route planner to tack/trim in the most optimal configuration wouldn’t be beyond the realm of possibility.

What are your thoughts?