I'm sure this is a stupid and/or already asked question. But I don't do astronomy. If every galaxy has a black hole, and black holes suck everything in, does this mean that our galaxy is being slowly destroyed by black holes? (Everything just keeps getting sucked in) And if so, are we gonna die due to the massive gravitational pull, eventually? Or are the black holes, like, inactive or something? (can black holes BE inactive?) And if this is all true, how come everything isn't already gone?