Define what you think is "Fundamentalist religion"!
Already did, numerous times. RQAA.
But, I'll humor you again this time.
ALL religions are based on some initial circular argument, also known as the Argument of Faith. This itself is not a fallacy. ALL other arguments for that religion stem from that initial circular argument. Christianity, for example, is based on the initial circular argument (or Argument of Faith) that Jesus Christ exists, and He is who He says He is, namely, the Son of God. ALL other arguments in Christianity stem from this initial circular argument.
Attempting to PROVE a circular argument True, is a fallacy, called the Circular Argument Fallacy. This is what a fundamentalist does.
It is not possible to prove whether there is a god or gods.
It is not possible to prove there is no god or gods.
You have attempted to prove your religion is True. That is not possible. This is what makes you a fundamentalist.
The Church of No God also tries to prove their religion is true. This is not possible. This is what makes them a fundamentalist style religion.
Other fundamentalist religions include the Church of Green, the Church of Global Warming, the Church of Covid, the Church of the Ozone Hole, the Church of Hate, the Church of Karl Marx, the Church of the Big Bang, the Church of Evolution, the Church of Abiogenesis, etc.
Science is completely atheistic. It does not care whether any god or gods exist or not. It simply doesn't go there.
It is the same with mathematics.
It is the same with logic.
If you want to believe in your god that is fine...but don't try to prove it. You can't.
Atheism is not a religion. It's Latin meaning uses the prefix 'a-', mean 'not'. 'Theism' means religion, or belief. Atheism takes NO view. It simply does not care whether a god exists or not. It simply doesn't go there. Atheists have not decided whether any god or gods exist or not.
The Church of No God is a religion, not atheism at all. It is fundamentalist by nature, continually using magick words like 'science' to attempt to prove their religion is True.
I happen to be Christian. I am fully aware that my religion is based on faith, and faith alone. I cannot prove any of it. There IS evidence of it's truth, however. Evidence is not a proof. I have already stated some of this evidence.
There is also evidence supporting the Church of No God. Again, evidence is not a proof.