Films frequently depict humans as going on to colonize other planets once humans have ruined our own. Unfortunately, this bit of science fiction is fantasy. Perhaps humans will overcome existing obstacles, but we will need time to do so, and it won’t be easy. Please read this sobering article by Colliers http://www.richardlcurrier.com/articles/can-we-colonize-other-planets.html
It describes how difficult it would be to colonize other planets. When need a sobering view as we destroy the one we have.