If there was actually demand for faster high-volume shipping between East Asia and North America then logistics companies would just buy faster ships. The technology for that already exists and is far cheaper than building a railroad tunnel across the Bering Strait. Shipyards are capable of building freighters with more hydrodynamic hulls and powerful turbine engines. So far no one is really asking for those, which indicates the market doesn't exist.
it exists in the form of air freight, which is stupidly more expensive, but also stupidly faster. so there is a market, just apparently not one in-between.
