Do many Americans know much about Australia or Australians?

I can't speak for Americans collectively, naturally. I fought with the Aussies in Vietnam - good men. I have been to Australia several times - great place! I was disappointed with your gun law changes a few years ago. I have a cursory familiarity with the government - enough to realize you're having internal dissension - the same as the US, but not so pronounced at this time. I do not like that the US and AU are not working more closely together on global matters.