Just a question, please understand im not trying to start any fights. Im trying to understand.

Despite being a hige draw with the audience, he wasn't with advertisers. Enough negativity piled up aound him over the years that major companies avoided him, thus he ended up not generating the revenue he could have. So that may have something to do with it, that it wasn't cost effective to keep him on, and this latest was the camel that broke the straw's back [see what I did there?]

I heard this once, mind you, not saying it's THE reason or even a reason. Just a possible factor, but in need of verification and I be too tired to bother...

That would make sense

huge*

Some people think it was because of the almost $800 million settlement Fox News had to pay to Dominion, other people say it was because of offensive and sexist remarks he tweeted about a top executive and other women at the company.

Sexist? Noooo Tucker Carlson would never do that.
Ah yes, sarcasm.