Can the sexism in these types of games stop?

[Alardem]

After all, how many female villains or monsters can you name that are both clearly feminine AND not 'sexy'?

Siren from Killing Floor
Witch from L4D
Spider queen from Doom 3
GLaDOS from Portal

Alma from F.E.A.R., minus her 'sexy' illusion from FEAR 2. (Though I think that game actually had a largely underrated twist on the 'seductress' cliche.)

System Shock 2's midwives. Imagine a female 'Gatherer' behaving like that.