Precursors are literally immortal and their constructs are invulnerable to all forms of damage that isn't a Halo. And wasn't the whole point behind the Vong that they were separate from the force? Look, just to prevent future arguments, the precursors are basically gods. They are older than our universe, they control death, they create life and entire universes for fun, and they can change their physical forms at will. They can even choose to not have a physical form. The star wars universe does not stand a chance. And just fyi, star roads are multiple light-years in length. They are meant to stretch from star to star.