Right, because you are so greatly oppressed. :sarcastic People were fighting for equal rights under the law - the ability to vote, to get decent educations, to get jobs - things that actually make a difference between their being able to raise and provide for their kids. People were killed in this struggle.
And you are complaining because some idiots in some churches are calling you names.
Just so that we are clear:
I don't think that it's ok be denigrating atheists, and have argued against people when they make ridiculous threads about needing God to be moral in these forums. But to compare your situation to what African Americans were facing at that time (and still face to a certain extent) is ..... a stretch, to put it politely.