"reality has a well-known liberal bias"
As we both know, reality has no bias; but Colbert's comment is so delightfully self-affirming that narcissist progressives can't stop repeating it as fact.
Personally, I think any society needs both liberals and conservatives to be healthy. Lately, progressives seem to delight in actually killing conservatives. (shrug)
Liberals cheerfully explore the world, and while many fall off cliffs, get eaten by bears, and eat berries that kill them, the ones that survive make progress possible. Without them we wouldn't have found wonderful new places better than where we were, animals to domesticate, and delicious berries that are good for us. Confident, naive liberals die in droves but pull civilization forward.
OTOH, conservatives are insurance for survival. They DON'T explore where stronger, dangerous hostile tribes may lurk to be led back to our village to enslave/kill/eat us. They don't eat those lovely red berries because the blue berries our ancestors have eaten have kept us healthy and well for centuries and are good enough, thank you. They do not accept strangers because if someone was a decent good person, why would he have been driven out of HIS village and come here?
Which is more important, survival of our tribe, or advancement for our tribe?
Trick question: both. The tension between sides is fine, rational, and normal; both should be encouraged. In a healthy society, our educational system would put out both.
What's odious to me is certainty. (To be clear, I find the same sort of certainty among Evangelicals and it is equally if not more repellent. And I consider myself a person of some Faith, maybe that's why?)
I get it; as a liberal you *have* to be confident that whatever whacky bullshit you're following today MUST be right, it MUST be better, or you wouldn't chase after it like an OCD squirrel. What's ironic is that most of the values leftists insist are core humanist values - even humanism itself - was born in the hearts of deeply religious men like Luther, Erasmus, and Scottish Presbyters.