Well, whatever you might say about President Trump's behavior, it sure wouldn't reflect well on Jeff Sessions to openly defy him.
The President—as of right now—clearly wants Jeff Sessions to resign. Can we all agree on that?
Now, given that fact, why would the "gentlemanly, loyal, ethical" Jeff Sessions thumb his nose at the President, at whose pleasure he serves?
If Jeff Sessions doesn't resign, and forces the President to fire him, then Sessions will have deliberately and vindictively made a bad situation worse. And that would be a negative reflection on his character...
You didn't ask me, and I won't respond if you reply to me, but no, we can't all agree on that.