Then what more can be done? Does it really mean anything if "America" apologizes, when the people who actually owe apologies are either dead or won't admit it?
Symbolism without substance is worthless.
In the sense that you mean it, yes, it is worthless. But to those who gain power and wealth from dividing Americans, pitting them against each other and keeping us distracted from the real issues and their criminal acts, this controversy is a continuous supply of what they need.