>No cosmically connected society would even think of talking to us.

I am pretty sure scientists do research that involves laying down and pheromone trails. So, to the extent ants can talk, we have interest in talking to ants. You're making the unfounded assumption that aliens would treat humans like a small and unrepresentative sample (Victorian nobility?) of humans treat other humans.

Although there are many anthills we don't talk to, that is because each anthill of the same species would say the same thing. There is only one human anthill, so that objection does not apply.