In order to defeat a formidable candidate rhetorician like Carlson, Democrats need a strong candidate themselves. Kamala Harris is not. She loses.
https://www.yapms.com/app/?m=2hx5
Of course, this assumes that Carlson can transition himself from talk show host to candidate and can convince the people he's able to lead, as many independents that are otherwise right wing won't all view Trump's memory positively.
LOL Illinois.
Anyways, he would be a formidable opponent, but not unbeatable.
A Tucker Carlson GOP would further bleed support in the suburbs and with minorities.