Fine tuning argument assessed

[Chas]

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Nope.
There are dormant black holes around. They "ate" everything within their field. No matter how strong they get, they can run out of stuff to "eat".
Plus, no matter how close something gets, as long as it doesn't drop past the event horizon (which can happen do to the enormous amount of energy something has while orbiting close to a black hole), it won't get "eaten".

Black holes are imaginary, just like angels, demons, ghosts, gods, and spirits. If Hawking hadn't imagined black holes would you even be talking about them?

Maybe some black holes will show up when that 1,500 mile-sided gaudy bejeweled golden cube New Jerusalem makes its appearance.

No, not quite. The idea predates Hawking by nearly two centuries.

The idea of a body so massive that even light could not escape was first put forward by John Michell in a letter written to Henry Cavendish in 1783 of the Royal Society:

If the semi-diameter of a sphere of the same density as the Sun were to exceed that of the Sun in the proportion of 500 to 1, a body falling from an infinite height towards it would have acquired at its surface greater velocity than that of light, and consequently supposing light to be attracted by the same force in proportion to its vis inertiae, with other bodies, all light emitted from such a body would be made to return towards it by its own proper gravity.
—John Michell

In 1796, mathematician Pierre-Simon Laplace promoted the same idea in the first and second editions of his book Exposition du système du Monde (it was removed from later editions). Such "dark stars" were largely ignored in the nineteenth century, since it was not understood how a massless wave such as light could be influenced by gravity.

And you are asserting there is a basic flaw in General Relativity. Care to demonstrate what that flaw is?