I'm writing my final proposal as one final swing at the bat and the title is "XYZ or Bust" where either I get buy-in or I'm leaving. I've never felt better in my entire career.
This is made possible because I'm old enough with enough assets that I can quit and retire, so now it is time to leverage the positives.
From reading this, it is clear the team he is on is toxic. The key to not being on-call all the time is not answering the call unless you in rotation. It's hard to do for sure.