This is the role of the Supreme Court, or so it has been since Marbury.
"Anyone who wants it changed is going to have to amend the constitution, or find a preponderance of Supreme Court cases addressing a change to the presidential requirements issue, not monkey around with definitions to suit their desires."
Amend the Constitution? Why? There is no definition of natural-born in the Constitution (or in the US Code, for that matter), just as there is no definition of "speech" in the Constitution. But, when the Supremes extended speech to photographs and moving pictures, no one had to amend the Constitution. That is the role of the Supreme Court - to interpret the Constitution. Interpretation includes defining 18th Century language in a contemporary setting.
They made up their own definition to apply to the case at hand. The case has absolutely nothing to do with natural born citizen requirement to become president of the United States. Was the child a citizen, yes, that is what they ruled. Was the child running for president? No, this case had nothing to do with that.