

The big thing people over look when considering the we are broadcasting thousands od watts into space, they might hear use is SNR
Signal to noise ratio. (the more random stuff on a frequency the harder it is to read the signal)
Yes, humans are pumping out a huge amount of radio (etc) signals into space. it is not coherent or directed.
Thousands of antennae all over the world pumping different signals but from far away, they are all noise interfering with each other.
IIRC: Even if there was a radio telescope only a few light years away, all they would see pointing directly at earth would be static.
I hate to tell your this but his mother lived to 106…