McCain could die the moment after inauguration. Remember that Benjamin Harrison contracted pneumonia DURING his inaugural address and died 31 days later. And we know McCain is not only some for whom cancer is in remission, pre-cancerous colon polyps, vertigo, high cholesterol, but he is pushing the average age of male mortality in the USA.
So it is quite feasible that Palin WOULD be in a position to nominate SCOTUS justices.
As for Palin's position on abortion - it is very easy to disrespect it. Because it seeks to bring the full power of The Government to bear on compelling fertile women to surrender control of their bodies to The Government. This is an approach that treats the US Constitution as secondary to personal religious belief. That may be acceptable in private life, but it is anathema in any sort of political leadership role, much less that of POTUS.
Furthermore it would be highly dismissive to suggest that McCain nominated Palin only to relegate her to the role of a warm bucket of spit. So its unwise to believe that Palin would NOT have any policy influence in this area. After all, it is not unusual for a POTUS to hand off pre-vetting of justices to the V-POTUS.
As for Kelo - that's about as straight a reading of the US Constitution as you can get. The 5th Amendment protections simply guarantee that you get paid "just compensation". So while I wish the ruling went otherwise, its a perspective that I've long wondered why it wasn't held the way Kelo was held.
As for the 2nd Amendment, Scalia is the one who is truly bent on that issue. Am 2 was very clearly intented to provide the population with the weaponry to go toe-to-toe with the Foederal Army. At the time that included the most powerful weapons platforms in that era - weapons that could level a city killing most of its population. These weapns platforms were more commonly owned by individuals in that era, than by the US Government. Yet Scalia turns Am 2 into an amendment who's primary purpose is to satisfy a Freudian predeliction, while turning the phrase "bear arms" to mean only those weapons a man can personally carry.
so I have no problems with Ginsburg or Stevens. Compared to ScAlito and the other right wingnut activists (thomas, roberts), my individual liberties are much safer with Ginsburg and Stevens rather than those who would roll over and play dead for the Administration on torture, habeas, Writs of Attainder, warrantless searches, involuntary servitude, freedom of speech, police power, etc. etc. etc.
So no, Palin would NOT appoint judges that respect civil liberties. Because at the core she does not BELIEVE in civil liberties. Her position on governmental control of women's bodies tells us that she puts her religious beliefs (and hence her political beliefs) AHEAD of civil rights.
It sounds like you support Palin. Let me ask you this.
The majority of the population actually lives their lives contrary to the beliefs espoused by McCain and Palin (I can support this but that's a digression) and the Republican Party in general. We've had 2 elections where the GOP at best "won narrowly" yet governed as though it had a mandate.
The result has been a nation that is increadibly fragmented and internally hostile.
If the GOP wins this time, at best it will once again win by a narrow margain. And even if it recovers marginal control of the Senate (Lieberman siding with his buddy McCain and switching parties) it won't have the House. That means either McCain continues to govern the way GWB has governed for the last 2 years - essentially ignoring the public - OR McCain goes back on his campaign promises and gives in to public opinion on tax cuts for the middle class, Iraq drawdown alienating his base.
Meanwhile all the Obamaniancs are completely alienated and the PUMAs quickly realize what a disaster they made by believing in Palin.
What does McCain do? How does he govern in a way that does not lead to serious civil discontent?