This is what Keith Olbermann said. He personally detests Colbert for wrecking Letterman's set and more, but would've brought up if it was for political reasons if it were. Network TV/cable operations, especially expensive shows like Colbert, are dinosaur businesses.
Generally, the demos for network TV is 70-80+ years and not much else.
A big thing that put me off about Colbert and other similar shows is that it’s all way too one sided. There was so much comedy gold being provided by the Biden administration and they refused to cover any of it.
All of them other than Gutfeld are fighting over their personal slice of less than half of the pie. No wonder they are all struggling to turn a profit.
Generally, the demos for network TV is 70-80+ years and not much else.