I'm sure others here might feel similar, but online religious discussion has led to almost exclusively bad experiences with atheists. Not just here mind you, this is not some sort of meta post. These days in person life hardly allows for me to have this conversations, I'm either with a small group of known friends or on the clock, so as far as I can tell from experience, this is the majority of atheists. Please do correct me if I'm wrong. I'm sure theories on this range from "duh, they're all evil and immoral" to "being anonymous", but I think the answer lies in between.
I do not believe atheism to be some inherently negative or wrong metaphysical view, but I think two things contribute to the overwhelmingly negative experience. First is simply the main authors that are read by atheists. From fringe groups like the church of Satan to the most popular authors like Dawkins, I've seen a tendency to treat theists in some of the worst ways possibly, even calling them mentally ill or deluded as a whole. Let's look at some quotes.
"Many of us saw religion as harmless nonsense. Beliefs might lack all supporting evidence but, we thought, if people needed a crutch for consolation, where's the harm? September 11th changed all that." - Dawkins
"My real feeling is that anybody who believes in supernatural entities on some level is insane. Whether they believe in The Devil or God, they are abdicating reason. " - Peter Gilmore
In these quotes I see the same type of generalizing, closed minded, hateful and insulting exclusivist tactics engage in by literally all fundamentalist groups. The others are insane, they're dangerous, there are no exceptions to this rule. This is the way groups like the medieval church, the Phelps family, the Islamic state, etc. et al. treat those who disagree with their metaphysical world view. Of course it is not an atheists fault if they have no other sources to go to, just as it's not a child's fault if they're raised unaware of other metaphysical positions. But the question then becomes, "why are the sources like this?"
I certainly think atheism make sense, I can easily see why people would believe that we're all wrong and the universe lacks any deities. But unlike certain religious groups, I do not believe this position somehow leads to negativity, anger, and hate. I believe the problem is that after years of brainwashing, torment, and building resentment, when atheism finally hit the playing field it was more a reaction than a philosophical system. It was not enough to reject gods, there was now a chance to get back at the institutions and ideologies that had treated them poorly. Instead of just considering arguments, it was decided that religious people were deluded fools, all brainwashed and lost, all mentally ill and misled. This is best illustrated by the death of skepticism in "free thinking" atheistic circles, replaced by essentially a new dogma of a universe without god. Materialism must be true because god can't possibly exist, theists must be brainwashed because they couldn't possibly have valid reason to believe, etc. and so on. Even the need to defend one's own position was dropped, in favor of simply mocking and stalling the theist.
No, I do not think this describes all atheists, I have some very good, intelligent, calm and reasonable atheist friend, the kind who will tell you why, and admit when you have a decent point even if in the end it's wrong. But like with religion, this is the minority. I believe that between a limited market and reactionary thought, atheism has become what we know it as (at least with internet atheists). Now maybe I've just had bad experiences, does anyone else agree or disagree? Whether small or large, I believe this mindset is due to the limited resources and reactionary thinking. Saying they're simply godless or have no morals is a cop-out imo, though I know it's probably believed by many. What do you think?