> This logic doesn't hold under closer scrutiny. The timeline to expand missile production is on the order of years.

You're missing the whole point. The point is not that missiles are easy to build. The point is that military interventions planned not only to prop up logistics but also to accommodate for supply constraints. There is no plan on earth that consists of firing a constant barrage of expensive missiles, and instead you have armed forces planning around using dumb and cheap alternatives that are easier to source and provision.

And Trump did nothing of the sort. There was no plan, no exit strategy, nothing. Not even a war declaration to kickstart the country's logistics infrastructure. Of course ammo runs out if there is no plan to provision it.

> This isn't the 1940s anymore where you can convert every car factory into making tanks and missiles.

That's also another point you missed. Trump even failed to mobilize the infrastructure to supply with basic ordnance. There is no plan.

Pay attention to what you are saying yourself: how do you start a war when you don't even secure your own supply needs for the first weeks of the engagement?