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

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

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.

What are the pros and cons of a prospective bride/groom not having any siblings?

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.

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?

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

After 70 years of the crappiest computers ever made, why does IBM exist?

A belief in a god is not the problem.

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

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

Why does my mother care about my sister more than me?

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

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

THE BIBLE IS THE PROBLEM!

Why won't Canada build their own fighter jet?

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