Stranger in a Strange Land main essay points help

[pure kirk]

I'm writing a comparative analysis essay on stranger in a strange land and The handmaid's Tale.

I've decided my main idea is about the negative side of society

so far i have two points

-Negative side of religion

-Negative side of the government (gov't corruption etc)

and i need a third point

Initially i was going to do negative side of human nature but i cant think of three subpoints to talk about for human nature.

So for my third point i need a negative side of society that is present in stranger in a land , it would be better if it had something to do with a societal institution (something that is a part of society ??)

Any help would be much appreciated.

Thanks in ahead.