Am I making a valid comparison? Is it reasonable to compare life as an atheist in America in 2011 to life as a woman in the early 20th century? Clearly there are significant differences. Atheists can vote. They can, in theory, hold public office. They can get married, sign contracts, work wherever they're qualified. So, do we atheists have a right to be angry in the same way suffragists had?
To answer that question, I'll recall some more history. In Mosaic law, as we all know, women were slightly better than slaves. They had no property rights. In Roman law, women were completely dependent on male relations for all legal matters, and when they were married, it was a matter of purchase between two families.
Here, we can ask a pointed question. Do women have the right to be angry that they're not making as much as men in the workplace? After all, they can vote, own property, divorce their husband, sue him for child support and alimony, and live quite happily on their own. This country is one of the best places in the world to be a woman! What right do women have to be angry?
If your skin prickled a little bit when you read the previous paragraph, good for you. You're halfway to understanding why atheists have a right to be mad. The reason women still have a right to be mad is that things are still not equal. They have no obligation to remain silent simply because they have it better than someone who lived a hundred, or a thousand years ago. The reason women have it better now is that people were angry all through history, and made small gains here and there over many generations. Without the fuel of anger, women would still be property, and wouldn't even have the opportunity to be mad about making less money in the workplace.
http://www.examiner.com/atheism-in-atlanta/for-july-4th-atheism-women-s-rights-and-a-history-of-oppression-1#ixzz1RNk3DgUj