Because some people's glass is half full and aren't waiting for the death of the human race? We can study exoplanets and work on saving our own at the same time

Because some people's glass is half full and aren't waiting for the death of the human race? We can study exoplanets and work on saving our own at the same time; which we have the capacity for right now with nuclear fission power. the powers that be haven't been forced to be responsible yet. they eventually will have to deal with it long before humans go extinct.