I was also wicked amused at the offer to give away large parts of Nevada. Er...Vegas? Some of the fastest-growing suburbs and exurbs in the United States (pre-housing bubble collapse, anyway)?

Well, now we need a Silurians in Vegas fic!

I had the same feeling but couldn't help be interested that even amongst the (aboveground) humans, the women fell into the aggressive/"martial" category of behavior (Ambrose) and the male the nurturing (Rory nursing like a nursing thing).

This is true.

Also, I was thinking about it last night, and I do not think the Silurian soldiers were actually irrational. By their own, consistent standards, they were taking justified, if harsh, steps to preserve their race. (I kind of wonder if the word we'd be using is "irrational" if they were all unbending male militarists.