Probably because atheism by its definition purports to be something the immoral ascribe to. Because character, integrity, scruples, and a moral base is not something that atheism imparts as part of its philosophy.
While there are atheists who will argue there is no such thing as a atheist philosophy, and that false proclamation simply adds to the impression that integrity is lacking in the atheist that affords that defensive proclamation.
What I think speaks poorly also of atheism is the history atheists have carved out in the world. While Christianity nor any religious belief can argue their history is as pure as the driven snow, atheism, for all that it encompasses as "no" belief in no such thing as a higher power, god, creator, impresses upon history a deeper negative impression when atheism flavors a dark brutal murderous history that was carved out in the name of humanist values. Rather than religious.
Communism in Russia for instance. While atheism is not a political ideology it was the lack-of-belief system that was proclaimed by Stalin. And from that point of disbelief he committed atrocities that pushed forth a political ideology that did not have deity at its center. Rather, he pushed forth a communist manifesto that if anything can say it argues that this life is in the hands of the psyche of humanity!
Which means that man and his cohorts trumpeted an oppressive communist regime that credited the human intellect for its tenets.
And while atheism and atheists may not ever be something that arrives to the attention of Christians in their every day, I think what also helps to impress a strong aversion to the atheist philosophy is when atheists purposefully join religious communities so as to mock, ridicule, publish sarcastic remarks and condemn the Christian faith and philosophy, that that minority who elect to engage in that behavior demonstrate as members of those communities.
And that while they argue there is no such thing as God , they are unable or unwilling to spend their lives elsewhere. Rather than spending hours upon hours and year after year committing their attention to what their atheist label identifies as, nothing!
Thereby indicating by their presence in those religious communities that their intent and agenda is to mock, ridicule, publish sarcastic remarks and condemn
people! Whom their atheist humanist ideology among their own purportedly espouses
a strong interest in or concern for human welfare, values, and dignity.
Something that is revoked by those who behave in such ways in religious communities. And that then demonstrates through the abdication of that humanist example, by definition, as well as having no faith in any religious deity, a personality that is bad natured and malevolent.
History precedes the atheist that would think to be elected to lead a Democratic Republic, when Communist Russia, and other countries that were led by atheists afford a history that broadcasts the potential inherent in an atheist candidate.
And most certainly among the electorate in a democratic republic when atheists enter into a community that boasts the most populace body of citizens in America, Christians, and demonstrate what the atheism is when the atheist interacts with people whom any atheist candidate would purport to lead and represent if elected to have the chance.
Article says that Americans would rather have a pot-smoking, admitted philanderer as President than an atheist president. Why are atheists so disliked in America? I have spent quite a bit of time in Europe, and atheists are viewed as ordinary, responsible, trustworthy citizens. In general, why do you think people (or you) dislike or distrust atheists? I am not a bad guy, I promise.
Americans Exaggerate How Much They Go To Religious Services, According To Study
- again, spot the other common denominator 
