Of course, the people who support him may still think that the spying is a good thing, just shouldn't be secretive... and maybe the 46% undecided will end up against him. But certainly doesn't seem as clear-cut as you suggest - do you have any examples of the polls you reference?
It is debatable; the point is that this is not abhorrent to a clear majority... and if they ARE against it, it's not necessarily for principled reasons.
I don't know why so many people can't understand that a bad law is a bad law, and judge it as such. The criteria for whether a law is any good ought to be (at least partially) based on whether or not you'd support it if your opposition party were able to use it. If the answer is 'No', then it's bad, simply.
Debatable. See polling at http://www.reuters.com/article/2013/06/12/us-usa-security-po... as discussed on HN at https://news.ycombinator.com/item?id=5871423
Of course, the people who support him may still think that the spying is a good thing, just shouldn't be secretive... and maybe the 46% undecided will end up against him. But certainly doesn't seem as clear-cut as you suggest - do you have any examples of the polls you reference?