Yes. But it is not unique to the US. Aikido is not aikido if it is stripped of its politcal/social relevance, or its conflict-managing and peacemaking aspect.
I think that Hiroshi Tada addressed this point a little bit in part 5 of the "Budo Body" interview
, when he discussed the difference between ethics, or morals, and Budo.
Isn't political relevance a little tricky? Would political relevance to a conservative Republican mean the same thing that it does to a liberal Democrat? Doesn't social relevance, if we're talking about values, have the same problems?
Or am I misunderstanding what you mean by political/social relevance...