Atheists practice a form of religion. The points of atheists must be defended, and they are organized to a certain extent. They make an argument based on only what they can see and touch, and will not take a thing on faith.
I do not believe that you can change the mind of a self-proclaimed atheist, anymore than I believe that I can teach my cat to speak German.
No, it is not accurate. Just because there is significant overlap in the populations that hold two different ideas doesn't mean the ideas are the same. That's irrational.
BTW, homosexual does include lesbians. The term "homosexual" isn't gender specific.