“This community of farmers will definitely be fine when their farms fail, because they don’t rely on technology. Please ignore their tools.”
Like, there are a whole lot of reasons the article listed for why this won’t work in the future. You can’t just negate them because it works now.
It’s not just a breakdown in civilization - it’s a dramatically changed and broken planet in this scenario. The Amish will starve just as fast as anyone else when crops fail or it doesn’t rain for years on end.