First, it doesn't belong to the White House or Trump. It's there for literal and metaphorical reflection on what it means to be America, with specific reference to Lincoln and Martin Luther King. Second, I'm sure a bunch of the public money from this project landed in Trump's pocket. Third, it's just another failure, in the one area he's supposed to have had experience in before running for President.

Unlike his moral failures that appall us every day, we can laugh at this one.