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

THE BIBLE IS THE PROBLEM!

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

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

Is there a reason why many men give up on dating and relationships? Is the dating scene difficult for them?

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.

A belief in a god is not the problem.

Terraforming Mars Might Actually Work and Scientists Now Have a Plan to Try It - ZME Science

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

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

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

FDA rolls out AI tool agency-wide, weeks ahead of schedule - statnews.com

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

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

Forgotten in a collection, the discovery of this fossil presents a real problem for scientists as it doesn't belong to any known living family. - Farmingdale Observer

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