So, Snood, if it is so 'stupid' why bother to enter into the discussion at all? Nobody has said it is a scientific proposition. Conservatives like the idea that they are happier. I can't help it if liberal prefer to be miserable.
But in the grand scheme of things, do you prefer to live among people who are happier and content or among the suspicious, the complainers, the pessimists, the angry, the depressed?
I prefer the former and I find that coming from conservatives much more than I do from liberals. The overwhelming success of conservative media outlets also bears that out. If others see it differently, then they should express their point of view.
What's the harm in talking about it, unless it makes you feel uncomfortable?