The poll results are those who ‘self-identify’. It’s not based on any behavior.
If one lives in a college town and doesn’t agree with local professors that corporate executives should be executed, it’s possible to imagine oneself ‘conservative’.
Look at all the FReepers who self-describe themselves as ‘conservative’ because they oppose abortion and gay marriage but endorse every socialist policy backed by the United States Conference of Catholic Bishops!
What you write is true enough. However, I’m interested in behaviors; having little faith in a politicians words.