ROTFL!!
They didn't sail over to help create the USA. They sailed over because they didn't like their life in Europe. Also, they didn't "help" to create it, as in helping the real US people to create the USA, they DID create the USA.
Shows how ignorant you are, once again. (And I'm not generalizing you as a nation now, just this individual and many others posting similar comments)
America was found because the europeans tried to find a faster route to purchase Indian spices and merchandise. That in fact was the reason why the American original people were falsely called Indians. It didn't take them soon untill they realised they'd found a new continent with endless possibilities to rape and blunder, especially with the natives welcoming them openhandedly.
Due to the religious aspirations of the time, the 'savages' had to be transformed, or killed if they didn't comply. The gold was nice, too. The Spanish church saw the new continent as a challenge, and that IMO is the biggest reason why the natives were treated in such a horrible way.
So through a huge genocide and landgrab, your nation was formed. As a result of a shopping trip gone wrong.
'helping the real US people to create the USA, they DID create the USA.'
You really think the native americans are the core of your society originally? Think again. Or, as I suspect, you won't be capable of such an effort.