It turns out that our opinions on policies have less to do with the policy itself than who supports it.
Here's a report on a study that points out that self described liberals are more likely to to support targeted killings if Obama does it. Presumably conservatives are less likely to support them as a results.
This is not a surprising result, and may well fit theories that suggest people defer opinions on some issues where they may be conflicted to opinion leaders they either trust, or feel favorably towards. I also don't think that the Madison who wrote Fed 10 wouls have found this surprising either.