I think the part that is confusing you OP, is that there are many reasons why this is impossible First reason - Requires infinite energy- since there's mass beyond the event horizon, you have to pull it back against the pull of the black hole, hence infinitely hard by definition of event horizon

Inside black hole you cant send a signal - again, requires FTL travel and also black hole geometry is not like on earth. In fact, the points are discontinuous, so past the event horizon, everything points towards the center.