Why does it matter so much to atheists that God doesn't exist?

Notice that I said their rules, not any gods rules.

And then use and ENJOY these fantastic scientific advancements every single day of your life?

And how do you deny hundreds of years of advancement in all fields of science?

How do you find out who your handler is as a targeted individual?

Those rules that you are trying to reinstate are rules made by men who didn't know anything about the earth, nor anything about all of the other inhabitants of it. How can you not see that?

THE BIBLE IS THE PROBLEM!

I do not personally care if you believe in a god or not.

I Sampled All the Best Mushroom Gummies—Here’s What I Found - WIRED

Because these are not any gods rules we are talking about.

A belief in a god is not the problem.

My problem is that people who try to shove their rules down everyone's throats - including by physical force - DO EXIST .

First-ever airborne toxin detected in Western Hemisphere - Phys.org

The people of the modern world have evolved past all of that nonsense.

These are man made rules - made thousands of years ago for the use of the humans who lived thousands of years ago.

I am speaking to the US Bible thumpers here, of course ~ many of whom are flat-earthers who deny evolution and see scientists as evil people who are constantly trying, and succeeding, in disproving their beliefs one by one.

What, when building a house, are the necessary wires (beside 120v) to future proof my house, Cat6, Coax, low voltage, and alarm wires?

IT does not matter, mainly because it does not exist.