It’s a classic Henry Clay/Whig-era argument for the American System: protect U.S. industry with tariffs, build domestic manufacturing, and reduce dependence on foreign goods. “Naturalize the arts” means develop homegrown industry and skilled production inside the U.S., not literal arts in the modern sense.

The core claim is simple: without protection, foreign competition will crush infant American manufacturers; with protection, the nation can build a self-sustaining industrial economy. It’s both economic and nationalist—industry is tied to independence.