Why? It's just as hard to prove inconclusively that God does NOT exist as it is to prove that He DOES.
True. However by that logic, everyone is an atheist. You
believe that God exists, but you cannot
know that God exists (you can be 100% certain of your belief but that does not equate to KNOWING).
Science relies on "this is the best explanation we have for this right now". Of course theories get dismissed, disproved and replaced - that is what makes good science. The issue some people have with religion is that it
does not acknowledge that it may be disproved, dismissed and replaced in any context, however small.
At the end of the day, all religions are interpretive, otherwise all Christians would believe the same things. As it is, they all share one belief - that Jesus was the son of your God. That's pretty much the only combining factor of Christianity globally. Why? Because it's based on a book, written 2-6,000 years ago, based on a faith, interpreted into thousands of different languages.
I personally don't believe in a God but I am happy that I would be forgiven by the Christian God for this because:
1. If your God created me, he created me not to believe.
2. If your God is all knowing, he knows why I cannot believe.
3. If your God is all powerful, he would give me a reason to believe.
4. I don't pride humans above any other beings in the animal kingdom. Different, yes. Supreme, no.
Plus a whole bunch of other reasons, logical inaccuracies etc.