(continuing) clans for generations.  The Swedes, Norwegians and Finnish are descendants of the Vikings.  Australia was settled/ conquered by convicts.  Cuba and Haiti were conquered by the Spanish and French, who exterminated the islanders living there.  Etc., Etc., etc.

Either you are naively ignorant of history,, or you just loathe America so much you don't care to be sincere in your criticism and argument.

Regardless, you are entitled to your opinion and have the freedom to bash this country, courtesy of the constitution and the Bill of Rights.  However you might bear in mind a quote from Mark twain, Better to keep your mouth closed and let people think you're a fool than to open it and remove all doubt.

Have a nice day.