This is part of the Dark Forest theory - a corollary to the Fermi proposition about aliens.
All races hide but when discovering a new competitor the attack must be from a long distance - light years or close to it so the attack cannot be traced back and sure kill. No one would want to get as close as you suggest, lest they be discovered. Its fire and forget, then scoot away.
The best attack would launch a seed which on entering the solar system, ‘blossom’, transforming the entire system from a 3-D object to a 2-D or 1-D object.
Aliens would not care about some local religion or what some book said was supposed to happen. Aliens would see neutron star density stuff as child’s play.
If an alien race is advanced enough to overcome relativity, they have the means to end human life on Earth anytime they choose. There is no reason to destroy a perfectly useful planet such as Earth to get rid of the ‘plague of humankind’. Satan has wanted to destroy a portion of humanity for longer than I could surmise, and God has not allowed it. There is a transformative moment coming which will change everything, albeit ‘aliens’ might be an excuse for the ones not snatched away.