My point was not that the Christian would be offended. Rather I was hoping to give an example where a Christian might find it odd to be receive greetings or best wishes for a holiday they don't celebrate.
Can we agree that the world might be just a little bit better place if each person were more inclined to accept with gracious thanks expressions of hope for happiness -- even though those expressions might seem "odd" -- rather than to become offended by the "oddity" of the expression?