TFA annoyed me much less than those hand-wavy evo-psych essays do. Actually the evolutionary stuff made sense, if one assumes that mites inhabiting different animal species are themselves different species, which do not or cannot interbreed. Maybe other research has indicated that?
we acquired our mites from our ape ancestors...
as early humans walked out of Africa...
I believe in evolution...but I believe in misinterpretation a lot more.