But whatever, you keep pointing out that there is little physical benefit on bf past 4-6 months. I dispute this but even if I didn't, what I am saying is that it's not a reason why women should stop feeding their children or why it's wrong and "perverse"
I never said it was perverse FGS!
And its not circular, it's a very simple - the critical thing is getting enough calories down your mewling infant's gob and making sure they don't puke it up. In societies with poor water and hygiene, breast milk is critical, in the west there are viable alternatives.
Breast milk is superior to Formula, no one disagrees with that. But it is more critical to get enough food, so mothers who cant produce breast milk must use formula.
What happens once solid food starts, is that BF is no longer the biggest deal for child health it was beforehand, because the critical deal - shovelling High quality calories in - has shifted.
It's not wrong to carry on past 6 months, but conversely the research also implies the penalties for stopping at about that time are also fairly low.
Ie if it works for you, go for it - but there is no longer any great risk in stopping if it doesn't.