We all watch Sci-Fi. Short-cuts are taken to make a good story. Danger though because we come to believe in the short-cuts and we continue to think of what we see as truth.
We see Earth resources running out. When that happens we think “Oh well we’ll simply colonize space” Meanwhile we are a clever race, clever enough to reverse the ongoing rapid population increase. Clever enough to better use the sources we have. Clever enough to have a high standard of living, though not perhaps the same. Clever enough to stop creation of long and degrading wars. Clever enough to do these things in the time it will take to find a solution.
Colonizing Space Will be Hard. Will take perhaps a century to start.
To start with, successful life requires many kinds of creature and they each require to be nourished, they each carry in their frames all kinds of bugs & so on….
Meanwhile we have to scratch our heads and be clever humans. Humans as a race compose themselves of all types of individual, good bad etc. & since we have needed them all in the past we will need them in the future.
We have to preserve life on earth for more centuries & not be the 6th. extinction
Perhaps we will make good use of AI to help us.