Then why are you acting like it's some surprise he is getting more shit?
He literally makes almost twice what the 2 players make combined that you are choosing to compare him to. It's not like he just makes a little bit more.
And to your point of why not just cut him -
Nate Davis Contract Details, Salary Cap Charges, Bonus Money, and Contract History | Over The Cap
If I'm interpreting this correctly he would be a 12.5 million dollar dead cap hit if cut this year. He can be cut next year for only a 2 million dollar dead cap hit. No shot the bears cut him this year and eat that 12.5 million when they don't have anyone waiting in the wings to step in and play well.
It makes perfect sense, but for some reason you are just choosing to think the bears fans are idiots or there is something else going on.