Unfortunately, many of the components are no longer made in the US at all, so parts are only available from offshore. For example, jig skirt materials are now only made in China or Vietnam.
There's only one hook maker in the US, Eagle Claw, and except for their Trokar brand, not a lot folks consider EC as a premium brand, so other brands, made in other countries, have become more in demand and popular. Gamakatsu, Owner and Mustad are very popular, with Mustad now being made in China, and the other two in Japan. VMC are still made in France, and Victory hooks are made in China. There are hooks made in S. Korea too.
Spinner blades & other such parts are still available from US manufacturers, but all the hard plastic lures are now produced offshore. There's plenty of soft bait makers in the US, although I'm not sure all the plastisol is produced here.
So, it's not easy to find many 100% made in the USA lures now, simply because the various component parts are not all produced here.