Tariffs still dominate headlines, shape sourcing strategies, and surface in nearly every policy discussion about strengthening American industry. But if a surge of domestic demand showed up tomorrow, could the U.S. manufacturing network actually absorb it?

The uncomfortable answer is: Not as efficiently as we think.

This isn’t because American shops lack skill. It’s because the manufacturing network that connects buyers to capacity is still largely analog.

Before we debate protectionism, we should acknowledge something more fundamental: The real bottleneck in U.S. manufacturing is coordination. And today, it runs on spreadsheets, emails, PDFs and tribal knowledge.

The U.S. hasn’t forgotten how to make things. We produce nearly $200 billion annually in precision machining and another $50 billion in sheet metal fabrication. Manufacturing accounts for roughly 11% of the U.S. GDP and employs nearly 13 million people.

Not to mention that the technical capabilities in U.S. shops today are nothing short of extraordinary. Modern American machinists hold tolerances measured in microns. Laser systems have increased from 25 watts to 50 kilowatts in two decades. Automation and inspection systems are sophisticated and widespread. The machines are incredibly modern.

What hasn’t evolved at the same pace of modern machinery is the connective tissue between companies. We have extraordinary technical capability operating inside a fragmented information system. Tariffs don’t fix any of that. If you want a domestic manufacturing base that can respond quickly to large programs, absorb volatility, and compete globally, the priority isn’t just shifting trade flows. It’s building digital infrastructure. Yet tariffs have been positioned as the primary lever for “bringing manufacturing home.”

The logic is simple: make overseas production more expensive, and domestic production will follow. The reality is far more complex, and tariffs alone are a blunt instrument for a precision problem.

Demand Isn’t the Problem

The persistent narrative is that domestic manufacturing needs stimulus. But in many sectors — aerospace, defense, grid expansion, semiconductor reshoring — demand already exists. The question is whether the system connecting buyers to American manufacturing capacity can operate at modern speed and scale.

Engineering teams spend weeks qualifying suppliers who already exist. Buyers struggle to get reliable answers on capacity and lead times. Shops track work on paper travelers and disconnected spreadsheets. Critical knowledge lives in inboxes and in people’s heads.

When information moves slowly, capacity becomes invisible. When capacity is invisible, buyers consolidate work with large intermediaries who promise coordination. That’s where the margin shifts, and this is the real constraint.

According to industry surveys, over 70% of small and mid-sized manufacturers cite supply-chain uncertainty — not labor — as their top growth constraint. At the same time, original equipment manufacturers frequently report difficulty finding reliable suppliers. Idle capacity and unmet demand can coexist in the same market.

Infrastructure, Not Incentives

Infrastructure needs don’t make headlines. This would look like standardized digital quality data instead of PDF packets for manufacturers. It would look like interoperable systems that allow decentralized shops to coordinate directly when needed — without routing everything through intermediaries.

In other words, improved digital infrastructure would allow American manufacturing to behave like a network instead of a loose collection of disconnected businesses. Tariffs are a policy lever. Infrastructure is a structural investment. One changes prices, while the other changes capability. If we want a manufacturing base that can scale, adapt and compete globally, we need the latter.

None of this is flashy or fits neatly into a campaign talking point. But it’s the difference between having capacity in theory and being able to use it in practice. Tariffs are a shortcut. Sometimes they’re politically useful. Sometimes they even help at the margins. But they don’t build the connective tissue that American manufacturing actually runs on.

The next chapter of U.S. manufacturing leadership will be written by digitizing and connecting this decentralized network so it can operate at modern speed and scale.

Tariffs are a policy shortcut. Building better infrastructure is the hard work. Only one of them actually builds lasting capacity.

Sunny Han is the founder and chief executive officer of Fulcrum.