People are way, way, wayyyy, over their head.
We are a bunch of pseudointelligent evolved monkeys floating around on a rock, we can't even invent a cure for acne let alone posses the intellect to populate other planets, Earth has been nice enough to let us live for a couple million years provided we don't cause any problem or else we'd be shaken off like fleas, it has been here for billions of years before us and will stay here for billions of years after us.
The average American can't even see through the thick layer of shit put on his forehead every single day, populating other planets would be tens of thousands of years away after global world peace/harmony, which is a state we will unlikely to ever reach.
Certainly not. At present rates of planet destruction, populating other planets will become a priority within a hundred years. Additional death-rate decreases will cause a population explosion by the late 21
st century. Humans will need to migrate off within 200 years, or risk extinction as a species.
Could be that earth has summoned us just to manufacture plastic and warm it up a bit with global warming, we are certainly not a threat to anything and won't ever will be.
Lemme tell you, I was on this cure and it's not funny. But it does work.
Pimple-face pimple-face!