My objection is to an Anthem - which is supposed to be a unifying thing - that we can't sing. We have to hire a Cantor and then stand there and listen.
It's a disgrace. We should all be able to sing Our National Anthem. 
Before you say - you can if you want...have you ever been in a group - listening to "Our Anthem" being sung beautifully by one person when somebody decides to start belting out the lyrics themselves? Cringe? Yes.