FYI, “Ranchers” also send their cattle to feed lots, and during the winter feed their cattle bailed hay.
The large operations you are thinking of are mostly gone, but there never were that many Bonanza sized ones in the first place. Most were small operations. There are many smaller streams, if you will, of cattle going to the feed lots. The feed lots don’t breed them or raise them to weaning age.
I was born in nebraska. So your post might as well be in a foreign language as far as I’m concerned.
Look up cherry county nebraska.