Isn't it arrogant to think a God made an endless universe just so man could live on one small corner of it?

Isn't it arrogant to claim that the universe is endless when scientific evidence shows it is not?

And isn't it arrogant to spend billions upon billions on trying to prove that we are not unique or important (which is what most space exploration seems to be about).

The Bible does not say anything about life anywhere else in our universe. That does not mean that there isn't any! It gives information that humans on Earth are to benefit from. It also speaks of other dimensions where spirit creatures dwell, and of interaction between that realm and ours. We are supposed to be getting on with our small corner and not trying to deny that this universe was deliberately brought into being by its Creator! Why this frantic effort to weigh up the miracle of life against blind, random chance, and throw insults at anyone who thinks existence has significance?

Let's just see your proof for your claim "This universe was not designed for us." You are entitled to think that, but don't expect anybody to believe you until you present your scientific proof.

First of all God loves us, we humans are the main attraction of His creation. Jesus didn't die for the cows, sheep, seagulls or the Martians, He died for us, HUMANS.

There is no life out there because if there was they are all going to hell because Jesus only died for humans.

It is not arrogant to think God made the universe for us, because he gave us the power to be His sons and daughters.

Consider for example you were a billionaire, and you had children, wouldn't you give them more than they could ever imagine?

Your question assumes that humans made God up. The truth is that God created the world and everything from Earth's distance from the sun to the complex tasks the hemoglobin in our blood does was designed, implemented and is being maintained by God.

“This is rather as if you imagine a puddle waking up one morning and thinking, 'This is an interesting world I find myself in — an interesting hole I find myself in — fits me rather neatly, doesn't it? In fact it fits me staggeringly well, must have been made to have me in it!' This is such a powerful idea that as the sun rises in the sky and the air heats up and as, gradually, the puddle gets smaller and smaller, frantically hanging on to the notion that everything's going to be alright, because this world was meant to have him in it, was built to have him in it; so the moment he disappears catches him rather by surprise. I think this may be something we need to be on the watch out for.”

― Douglas Adams, The Salmon of Doubt

It is arrogant, the universe is not endless.

Is it not sufficient mess now in this small corner?

I think so. But there are worse forms of arrogance.

The universe was not designed at all.

It is a product of pure chance and the Higgs-Bosun particle...