You're normal. These people are wack-jobs of the first order.
On another Dummies Funnies thread yesterday I was having correspondence with another FreePer on how these people are mentally ill. And I'm not only referring to these DU/Daily Kos wack-jobs but to leftist/liberals in general. Liberalism is populated by people who haven't matured into selfless adults. Their whole focus in on their own needs and wants. It's like they never matured in life. What we see in this thread are likely those still so close to their youth/education experience that they project that immature mindset into their young-adult daily life. When they don't get what they want they don't have the developed emotional tools to cope.
I'm no psychologist (anywhere close) but from what little I've read it makes sense to me.