When the president goes abroad and trashes the United States and its citizens, he deserves to be booed wherever he goes. As far as his wife, if she wasn't out and about criticizing what Americans eat, do or don't do, and lectures us on how to act, we'll boo her too. If they would conduct themselves with even an ounce of class, maybe I would consider your position as being legit. But they don't.
Not saying booing is not well-deserved in some cases.
But I prefer public respect for the Office of the Presidency.
There are plenty of other ways to voice displeasure/disagreement with an administration.
But, I hear ya.