Space exploration is not important because the land that we have on earth is hard enough to control already. If we were to take new planets there would be massive wars for land on certain planets or land on those planets. Imagine a world of constant non stop war. Most the human race would go away. This would be the biggest problem humans ever faced.
Really? That would be the biggest problem for the human race? I would think that the biggest problem would be running out of resources. How can humans survive without important resources? We cannot. Every day as water evaporates, hydrogen escapes our atmosphere into space. We are losing the most important element on the periodic table. Space exploration is THE defining point of what a country is made of. Space exploration shows how ambitious a country is to explore beyond what we see and discover literally what we are made of.
If humans lived on different planets, the chance of the human race becoming extinct would be significantly reduce whereas on earth there is a constant battle over who is the best and owns the most of something. This would spread the countries out to discover new aspects of our universe and be independent from all the others. However, no matter where you move to, there will ALWAYS be war.
What resources would we take from other planets. By the time we get to a new planet we will have advanced ways to get solar energy,all electric and extremely efficient cars,and advanced ways to get water and wind energy. If we explore space and take over new planets then we would have to bring two of every animal just to sustain life. It would take millions of years to get a planet somewhat like earth. Another thing is that the animals could not survive without an atmosphere. There is really no point in space exploration. Learning about planets is not important because we will never need to us the information.