Well, you can rule out thinking there is freedom of speech in this country.
Phelps is a useful idiot for MSM and Christian bashers. They gleefully point to him and make sure everyone thinks he represents Christianity, although nothing could be futher from the truth.
When a Muslim offers the same defense of Islam, saying the same thing about some terror-preaching Imam, most people on FR reject it outright. At best, they say that it's time for the moderate Muslims to prove themselves by cleansing their own ranks. Failure to tackle that responsibility is regarded as a tacit endorsement of terrorism.
But when the shoe's on the other foot, it's a form of persecution. Funny, that.