...And this is precisely why I cannot take seriously Sarah Palin as a candidate for POTUS, much less anything else.
You just combined two incompatible anti-Palin charges.
The “Palin can’t be taken seriously” charge is put forth by the moderate RINOs, many of whom voted for Obama.
The “Palin is bad because she supports McCain” is held by conservatives blinded by tunnel-vision.
If you combine them, it appears you might have another agenda.