Simple solution: Leave the statue there, but change the name of who it's supposed to represent to somebody else. It's not a free-standing statue, but part of a frieze. It can't be simply removed. It would have to be sandblasted away. Then there'd be a big ugly hole where it was and they'd have to put something else in its place. So make some minor changes, if that's what it takes, and turn it into someone else. Hell, call it Muhammad's law clerk if that will make everyone feel better.