Not to be disagreeable, but one of your statements is, IMHO, one of the great misconceptions of the modern era.
That if the grid collapsed or (as we are kinda seeing now with the droughts) there is a crop collapse or whatever that we just “go back to the good ole 1800’s”.
Gas lights in the streets, everybody has a garden in their backyard and chickens in the front, there’s lots of cotton growing and wood stoves and all that.
Not gonna happen. We don’t have even the skills to reproduce the 1800’s.
Make soap? Oh, yeah, I’m sure twenty five people might post here telling you how they have personally made tons of soap.
They are lying or testosterone loaded or both.
Even build a buggy much less a harness, be able to shoe a horse, being a smith or a cobbler or able to do even primitive medical procedures?
One in a million. That’s probably an overestimate.
It would take DECADES or maybe even a CENTURY before we got back to the 1800’s.
Sure, there are many people around with a wide variety of skills, and who have done some pretty interesting things. I do home brewing of beer.
But as a whole, we don’t have the cultural values, the type of industry, or the skills and values to support 300 million people like it was an old small town in North Carolina or something.
Going back to an 1800's technology also means going back to an 1800's population.
This is the simple example of how easy it would be to return the USA back to the 1800’s: “ - - - For example, if the Obama-commies shut down the US Electrical Power Grid, and the US Airports, - - - “
Nothing “collapsed,” no “skills” were lost, etc. as you injected into what I had written.
We, due to the mechanical turn of switches by the Obamanation commies, would be without anything that requires electricity; cash/credit registers, air conditioners, furnace fans, street and building lights, electric elevators, trains and the Chevy Volt.
The airports, in control by the Obama-commies, would shut down air transport of food and fuel, relegating us to transportation by ship and train transport a la’ the 1800’s.
Visit any US area today hit by a major storm, and you will see a population living as we did in the 1800’s. The World may run on Oil, but without electricity, we will have to live as or ancestors did in the 1800’s.
BTW, keep on brewing your beer, as the more CO2 that your carbonated beer releases, the more plants can grow to be strong and healthy.
Maybe it will be time to patent a coal-fired ice making machine to keep your beer cool? The coming Global Warming could be brutal.