When the Voyager 1 explorer was sent out into space in 1977, did anyone argue against including the now famous golden record intended to tell aliens all about Earth? It included recordings of sounds intended to let the aliens know what kind of beings inhabit our planet and what our planet is like, and it was engraved with diagrams showing the human body and a basic map showing where we are in the universe.
I don’t see how that’s such a smart idea. Assuming alien beings are out there, the info is found, and they can make sense of it (huge assumptions or hopes, but that’s the premise of sending the disc), why would we assume they’re friendly? I know that interstellar space travel is extremely unlikely for any beings, but then again, we don’t know if they’re way advanced and have found a way.
It seems akin to the Native Americans or Mayans sending a nice message to Europe in the 1600s, saying “Hey, we got lots of land and gold, and we’re not as technically as advanced as you. Just wanted to say Hi! And here’s a map for finding us!”