So it's fine if they cut off the guy they employed to make a humorous speech? At least Bush did leave Colbert do his thing till the end, that shows respect, if nothing else. This just shows (1) incompetence (at choosing the right person for the job) and (2) lack of respect towards others with different opinions.
Problem is, the full republican line up is ****ing ridiculous, and so when someone makes fun of them, it gets "unfunny" because it's too true, and an embarrassement to any republican who is represented by this line-up. And so it hurts them. As it should.