This has been asked and answered ad nauseam.
The Founders were okay with a NATURALIZED citizen (e.g. a person born in another country to non-American parents) being elected to Congress. This has happened on multiple occasions. These people ARE NOT eligible to be president and NOBODY ever suggested they are. Dalip Singh Saund was a member of Congress, he was never eligible to be president.
You fail to address this question. Why did the founders take this position?
Why does Article I read thusly :
No Person shall be a Representative who shall not have attained to the Age of twenty five Years, and been seven Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State in which he shall be chosen. And
Article II reads thusly :
No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty five Years, and been fourteen Years a Resident within the United States.
Surely, they had a reason. The founders were very thoughtful in their consideration of the Constitution and possessed an excellent grasp of proper English grammar. They had a valid reason. What do you think the reason?