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 .

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

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.

Has anyone ever read The Holy Bible completely through? If so, what was your overall impression of it?

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?

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.

When was the last time you had sex with someone much older than yourself?

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

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

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

Do you think that the Democratic Party of the USA is not fighting back against Trump? And if so, why do you think so?

THE BIBLE IS THE PROBLEM!

A belief in a god is not the problem.

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

What happens if a parent refuses to let their child be transgender? What happens if the parent tries their hardest not to allow their child to be trans, like flushing every bottle of their trans child's HRT down the toilet?

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