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

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

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

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

Bats don't get cancer, now scientists think they know the reason - Earth.com

THE BIBLE IS THE PROBLEM!

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

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

Is it difficult to learn C# if you are already familiar with Java?

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

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

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.

This nonhormonal hot-flash remedy gives options to women, experts say - The Washington Post

A belief in a god is not the problem.

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.

It is common sense that Joe Biden is ruining America and is unfit to be president, but why are the liberals still supporting him when Trump is obviously a much better fit for office?

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