Book Reports / Thousand Splendid Suns Essay Argument Points; thesis [6]

Hi there, i got a thesis for the book the Thousand Splendid Suns as follows:
Social and cultural norms cause Miriam, Laila and Rashid to suffer

or

Social and cultural norms cause charactes with conflicting interests to suffer

Arg1: Miriam is forced to believe that she's a 'harami' and that her life is invaluable.

Arg2: Laila is also forced into thinking that her life is worthless, despite of her well-educated background.

Arg3: Rasheed follows social & cultural norms which are the root cause of his tyranny and ultimately his death.

Now if someone has read the book, i really need some points. I tried a bunch of diff thesis' but no to avail. Im really stuck plz this is due 2morrow ...if anyone knows any valuable points related to any of these arguments then plz mention them, i'd be really thankful if someone does.