It violated the Constitutional power enumerated to that legislative body, patlin. Simple as that. The division of powers is also highly desireable in order to avoid placing too much authority in one institution or individual. This collided with natural law in the instance of the 1790 Act; the Act was repealed and replaced with that of 1795, which did not violate enumerated powers.
That the first Congress believed the matter to need addressing, with that Congress being composed of many Founders, clearly indicates that Original Intent did not include individuals born abroad as natural born citizens.
The Congress violates nothing if the child born abroad is not recognized as a member of that foreign society. Period. It was the threat of feudal “jus soli” doctrine that they had to deal with. Have you read the records? Or are you going off of someone else’s opinion. What is your source? I would like to research it further.