findings of the breaching experiments were trivial as Ethnomethodologists spend a lot of time uncovering 'taken for granted rules' which are of no surprise to anyone
EM denies the existence of wider society suggesting instead that it is a 'shared fiction' but functionalists would argue that norms and values are not fiction but a social fact
Marxists would are that the 'shared common sense knowledge' is in fact the ruling class ideology + the order that it creates serves the interest of capitalism not the individual