I thought South America had good meat. Is that not so? Or does it depend on which country?
My bottom line as a nutrition coach is usually, how natural is it? But it's not always as simple as that, and everybody's needs are different. So we need to be open minded about how to meet each person's needs in the most practical way. And sometimes that might mean eating foods that wouldn't be my first choice.
So I take all your points above about how you choose to meet your needs. You just do the best you can, and then don't stress about it!