Or even common ones that aren't the biggest sellers.
It's getting increasingly hard to find things locally, and frequently I'm left ordering things online after going to 3 different stores in town trying to find something specific. More than once it's been a replacement or a refill of something I bought locally a few years ago.
It's not a matter of "oh well Menards has the screws the right size but they're Phillips drive." It's "this size is only available online, if you order from us it'll take 6 days or more. Might still be Phillips idk." And Amazon can get me what I need tomorrow.
When mass deportations started under Hoover it was common that American citizens were swept up and sent to the Southern border of Mexico. Many of them were children who would only learn late in life that they were US citizens. This continued through Eisenhower's presidency.
The rock is quite useful as an industrial tool. It's when you cut it in to a fancy shape and wear it that it's pretty useless.
We use diamonds to test the hardness of materials, grind really hard things smaller, orient and locate specialized cutting tools, and cut through really hard things. Hell we sell garnet by the barrel to help cut through regular materials. Orderly carbon or, in many cases orderly aluminum oxide, is something we need a lot of. The price going down on those is actually good for manufacturing.
I wasn't kidding in the slightest. If the DoD had executed the second Iraq invasion it would have taken a few days. But Rumsfeld and his croneys insisted on it being done their way, and they didn't know shit about fuck when it came to warfare. (Note: this may have been because Rumsfeld was lying and committing crimes that, had the military done things the way they wanted, would have been exposed.)
Don't worry. The US may have the most experienced, well funded, and outfitted military on the planet, but the bafoons at the top keep getting in the way of the military executing a war the way it wants to.
See: Iraq 2, WMD boogaloo, or the cult classic Vietnam: Congress goes to war.
Shame it's too late for the Democrats to wheel out Henry Kissinger and Robert E Lee to campaign with.