Sentences

Hi,

These middle-class families have been disappearing in the recent years and are reduced to low-incoming ones. With the fewer and fewer middle-class families existing, M society structure has been already established.

These middle-class families have been transforming in recent years into low-income ones. With fewer and fewer middle-class families remaining, M society structure has been already established.

Does 'M society' mean middle-class society? Anyway, I don't undertstand the part in red at all. Try to say it in another way.

Best wishes, Clive