I'm assuming the "can" is a typo, but I would like to support that as written: we can imagine how to change it! Everyday, mundane social interactions created the ideology, and changing those patterns of social interaction will change the ideology. I realize this is less than satisfactory, because it just raises another practical question: how do we change everyday social interactions when the individualist ideology is so entrenched? However, one thing that gives me hope is the irrefutable historical fact that every ideology that supports the powerful eventually fades into irrelevance--Ozymandias and all that.
Miles