Without reading that, there indeed are strong reasons that this will be FAR worse.
In the 30’s, there were more family farms and even city people had gardens.
In the 30’s, people actually knew how to “do stuff”, not now.
In the 30’s, people didn’t have as much of an entitlement mentality. When the stuff stops coming from the government, they’re going to look to see who has “their stuff” and come try to take it.