Judging by this thread, athiests are the most intolerant, hateful, and irreverent types of people to have ever walked the face of the earth, however I do not generally judge based on a vocal minority.
I think what you perceive as intolerant and hateful is actually you being judgmental. I prefer to think of athiests as rational and kind loving people who have an alternate sense of community, and who react negatively to being judged by irrational standards.