God has never left any physical evidence of his existence on earth.
God has never spoken to modern man, for example by taking over all the television stations and broadcasting a rational message to everyone.
If we had scientific proof of God's existence, we would talk about the "science of God" rather than "faith in God".
If we had scientific proof of God's existence, the study of God would be a scientific endeavor rather than a theological one.
If you believe in God, you have chosen to reject Allah, Vishnu, Budda, Waheguru and all of the thousands of other gods that other people worship today. It is quite likely that you rejected these other gods without ever looking into their religions or reading their books. You simply absorbed the dominant faith in your home or in the society you grew up in.
In the same way, the followers of all these other religions have chosen to reject God. You think their gods are imaginary, and they think your God is imaginary.
A rational person rejects all human gods equally, because all of them are equally imaginary. How do we know that they are imaginary? Simply imagine that one of them is real. If one of these thousands of gods were actually real, then his followers would be experiencing real, undeniable benefits. These benefits would be obvious to everyone. The followers of a true god would pray, and their prayers would be answered. The followers of a true god would therefore live longer, have fewer diseases, have lots more money, etc. There would be thousands of statistical markers surrounding the followers of a true god.
Everyone would notice all of these benefits, and they would gravitate toward this true god. And thus, over the course of several centuries, everyone would be aligned on the one true god. All the other false gods would have fallen by the wayside long ago, and there would be only one religion under the one true god.
When we look at our world today, we see nothing like that. There are two billion Christians AND there are more than one billion Muslims, and their religions are mutually exclusive. There are thousands of other religions. When you analyse any of them, they all show a remarkable similarity -- there is zero evidence that any of these gods exist. That is how we know that they are all imaginary.
There is one thing wrong with what you say. Science is constantly using the evidences found here https://bitcointalksearch.org/topic/m.10718395 to prove that God exists. The fact that many of the scientists try to ignore the existence of God, while at the same time proving that He exists, doesn't mean that the proof can be dispelled. It only means that some scientists don't want to acknowledge the truth that is staring them in the face.
On the other hand, there are many scientists who do recognize and accept the proven truth of God's existence.
An example of science using the evidences there?
Christians believe that a creator is essential. Scientists believe that the idea of a "creator" is pure mythology, and that the complexity arose through natural processes like evolution. Who is right?
You can actually answer this question yourself with a little logic. Here are the two options:
The complexity of life and the universe did arise completely spontaneously and without any intelligence. Nature created all the complexity we see today.
An intelligent creator created all of the complexity that we see today because complexity requires intelligence to create it.
The advantage of the first option is that it is self-contained. The complexity arose spontaneously. No other explanation is required.
The problem with the second option is that it immediately creates an impossibility. If complexity cannot arise without intelligence, then we immediately must ask, "Who created the intelligent creator?" The creator could not spring into existence if complexity requires intelligence. Therefore, God is impossible.
In other words, by applying logic, we can prove that God is imaginary.