Not believing the doctor who says you have cancer,
Nope. The consequence only comes into play if you actually have cancer and you don't get treatment, and has nothing to do with whether you believe your doctor or not. You are committing a fallacy here. You are trying to substitute "being mistaken and taking action on that misconception" in for simply "not believing something."
Go back to your question about "moral relativism." What
consequence is there for not being convinced of any particular theism?
There is no such thing. If you are going to insist that there is, then I'm in it and you are not. You lose.
who tells you the Earth is relentlessly warming has consequences.
Science is not any particular community. Science itself debunks the stupid
Global Warming religion. Read my signature and let me know if you have any questions. Also, there is no
The Data. Only the most naieve of scientific illiterates allow themselves to be fooled into thinking that there somehow is.
Nobody is required to believe anything.
Credit where it's due! When you're right, you're right, even if you copy-paste it from some questionable source.
Some people are happy to go though life without doing much thinking or reflection.
Some people live to think and reflect.
The most famous atheist intellectuals of the 20th century were thinkers.
Thinking and fame have a certain relationship.
And they had the integrity to face the fact that in a universe comprised of nothing but blind physical forces, there is no meaning, purpose, or objective moral agency.
You are leaving out the wisest and most educated of the thinkers who know that nobody has a complete understanding of the universe, and does not know that the universe is comprised of nothing but blind physical forces, and thus nobody knows that there is no meaning or purpose or objective.
Also, those who claim that there is nothing but blind physical forces (where did you get this term?) is making a theistic statement, thus precluding atheism, ergo they were not atheists who said those things.