The people who want Tomlin gone don't want it because they "hate" Tomlin. They want it because they're realistic about Tomlin.
And if I were going to debate all these ex NFL players and ex coaches I wouldn't say a word. I would just bring in a big chart that would be totally blank except for the heading "All of Mike Tomlin's Playoff Wins in the Last Seven Years". And that would kick their asses.