Given how obviously impressionable and just not “on top of things” the politicians are in the US these days, I’m not sure someone could come up with a argument that convinced me that alien life with the ability to do interplanetary travel would waste their time trying to communicate with our leaders.
Within a day they would just decide to kill all of us for the safety of the galaxy.
They did this with the body armor from Starship Troopers as well. There was at least one episode of Power Rangers where it was used.