No that's stupid and not even thorough. Did Australia have a genocide campaign in Asia? We were involved in all the same wars. Of course in terms of sheer body count we probably killed more Turks then any other single nationality in the 20th century. But that's my guesstimate based on Gallipoli being a large campaign for us, and in turn brings us back to just how useless and stupid this type of reductionist historical metric is.

Semi-related, our (Australian) hands aren't clean of genocide either: https://en.wikipedia.org/wiki/Black_War is often considered genocide, though there is some debate on the matter.

Whose hands are clean?

I'm saying that the wars in question had lots of people killing going on, much of it not being done by the Americans.