Just as a microwave oven is practically magic to a caveman, it is reasonable to assume that our tech is caveman-tech to an advanced alien race.
Why travel at the speed of light, for example? Maybe wormholes or teleportation is possible?
For what reason would we be a magnet for everything out there to have to come visit us (the assumption being that if they don't visit us it can't be possible because we are somehow too important to ignore)? It's a rather flawed basis for an argument.
Our communications out don't speed up getting to them because their ability to get to us has. There is no reason to assume anyone knows we exist yet.
There may be many reasons why an alien race does not automatically make contact, some of which are actually unknown to us. If you have difficulty swallowing the "some things can be unknown to us" thought, believe it or not, you have an ego problem.