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

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

THE BIBLE IS THE PROBLEM!

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.

Scientists discover 230 new giant viruses that shape ocean life and health - Phys.org

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

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

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

What are some common examples of human hypocrisy?

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?

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

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

Temu’s daily US users cut in half following end of ‘de minimis’ loophole - New York Post

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?

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

Thoughts on an 8-1 Rangers win - Lone Star Ball

A belief in a god is not the problem.