I think there is no question that if you are organized as small farm that you can earn a good living. (Provided you know what you are doing! See all the “$250,000 per year income on 1 acre farm!” You tube videos!)
I think the question raised in this article is more for the the average gardener rather than market gardener or motivated prepper. (You are the last!) I would say that as Inflation increases farm input costs increase (fuel, fertilizer, pesticides, equipment expense and capex, crop insurance and front end bank loan interest) a capable home gardener’s produce value will approach or exceed rising food costs. (At least for those things she or he chooses to grow.) It sounds like you are doing very well! Lets hope for a good year!
I do not grow potatoes or cabbage here on “Acre o’ Clay” here just west of KCMO. I can buy them cheaply and there is not that much room in my 450 sq ft garden. (I would grow potatoes if I had space.)
I am fortunate to live within 10 miles of an Associated Wholesale Grocers Regional distribution warehouse. I think there will be potatoes here when they start to run out in other places.
Diana iW. has a way of growing potatoes which involves a quick till, some fertilizer (Phosphate and Potassium and minor minerals) and cover them with straw. Plants grow, in fall you harvest by raking off the straw and collecting your potatoes. She could add more.
I have grown things like lettuce and spinch and leeks through the winter in a low tunnel. They don’t really grow much after November 1st, They do keep though.) I am very good at growing leeks, but for some reason not at growing onions.

Six figure Farming. I think a lot of them make more money from youtube, holding classes, speaking engagements and writing books than farming. Or at least get worn out from farming and transition to the other things. Seems fun when in their 20s and then they get to mid 30s and realize it will suck when they're in their 40s, 50s etc.