We have to laugh at ourselves, and find the humor in all things. People who laugh live longer and have lower blood pressure. They now have in hospitals laugh therapy to help people with conditions. I dont want to be some recluse going thru life just getting mad at people. The guy is a comedian and all jokes have a hint of truth in them. The press corps is a buch of stuff shirts who think that their sh*t doesn't stink. Take david gregory for example. For them not to laugh at colbert is funny enough, after all they were the ones who invited him!
You strung a whole lot of phrases together in your post to me, and I'm sure you've heard them all somewhere, but , I don't agree with all of them (there really are things that aren't funny, bet you can think of a few if you try). Just because someone didn't think that particular bit was funny, or doesn't care for that type of humor doesn't mean they don't have a sense of humor. Please tell me you're not the sort who thinks that people who don't laugh at what you laugh at are somehow humorless.
Oh, and not all jokes have a hint of truth in them. Honest.
I'm glad you're not going to be a recluse and be mad at people because that really isn't healthy.
susie