The thing with the WBC is that they're doing far more to turn people away from Christianity than anything atheists could even begin to think up. Of course, most Christians play the "they're not true Christians" card, but they really do sour the public on religious extremism and intolerance. If anything is going to make the general public sympathetic toward gay rights, it's all these idiots running around with "God hates fags" signs.
Christian apologetics is the art of rolling a dog turd in sugar and selling it as a donut.