In other words, you have nothing. Whining about so-called "birthers" doesn't cover for the delusion you posted. No surprise that you can't back up what you post.
Okay. If you absolutely insist, then I will spell it out for you.
Some good men started our country. These men were called Founders. George Washington and Thomas Jefferson were Founders. And there were other good men like them.
They did not want a king. They did not want a queen. They did not want a prince. They did not want a princess. They said we should have a President instead.
They decided the President should be born a United States citizen, or be a citizen already when they wrote the Constitution. They did this because they knew that none of our citizens were kings or queens or princes or dukes from England or France.
They did not want a rich king or queen or prince or duke from some other country to come over here and become President. They knew that if a rich duke from England came here, he could impress a lot of people and buy up votes and get elected President. So they stopped that from ever happening by making a law that no one who was not already a citizen, or who would not be born a citizen later, could be President.
They wrote that in a big, important paper that gave the basic laws for the United States. They wrote that the President must be a natural born citizen. That paper is called the Constitution.