My ranting seems to have been ineffective. Or maybe I'm not understanding you.
Yes, Rice and beans are a complete protein. But so is rice. So is beans. As far as I know, all plants are complete proteins. In that, they have
all the essential amino acids.
Just to make this point, below is a screenshot of CronOmeter. But this time I did it for 21 heads of iceberg lettuce. If you ate 2200 calories of lettuce a day you would still get the minimum RDA of every one of the amino acids.
Now I'm not suggesting that anyone eat 21 heads of lettuce (although it wouldn't be a bad thing- you would still get over 100% of the RDA for every nutrient but Selenium, D, and B12. )
But this is the point: we don't have to worry about complete proteins. Even lettuce is a complete protein.
View attachment 1350