Any ‘real’ American President would have told President Xi, that was not an acceptable option, if the people of Taiwan chose to maintain their independence.
Effectively, directly and respectfully telling Xi to ‘”Eff-Off!”.
What did Joe say in response?
Probably something like; “Oh, okay. Say you guys got any of that Lemon Meringue Pie with the cherry topping left from lunchtime?
Just askin’ for a friend. Ha-ha!!”