We have no idea what the Mueller report will say, yet.
You might be correct.
Fox is one of the keys, for sure. Fox and the Rumppers have accepted much more than I had ever imagined any large group of Americans would ever accept from a president.
We might find out if they have a breaking point or not. Many who I personally know, do not have a breaking point on Rump, he could adopt the full on LIBERAL agenda and they would support it. He could murder 25 people on the Washington Mall is a mass shooting and they would defend him.
You are correct, no one "has an idea what the Mueller report will say," or, if even Americans will ever really see it
And Fox is a player, but I wouldn't give them quite the relevance you have, the only denominater they would be interested in would be ratings, and if their defending and rationalizing Trump's errors reaches a point approaching absurdity, they will bail on him
All should make great theater, but at what cost