The Misconception about Black holes
Black holes do NOT suck everything in. they have no more gravitational range than the star that made it. ( + the mass of things is has sucked in since)
Our sun is far too small to collapse into a blackhole, but for an example lets say it did -
just imagine this represents the Suns gravitational pull on a 2 dimensional surface - the steeper the black lines the stronger the gravitation pull, Earth is at a distance where the gravity is only strong enough to keep us in orbit instead of pull us in. Now if the sun collapsed into a black hole;
In this diagram the gravitational ‘slope’ is virtually vertical once you get close enough to the black hole, but at Earths distance the slope is still Exactly the same, and therefore we continue to orbit at the exact same velocity, everything would be normal. except for, you know, losing that big light in the sky.
The thing that makes black holes special is their immense mass compared to their relatively small volume. If the sun collapsed into a black hole it would go from 1.4 million kilometers to just 6 kilometers in diameter.