That is just what I was thinking, we may not like the results sometimes but it is still protected speech. If we can stop others from expressing their opinion (no argument they are disgusting) because it offends us, who will defend us when someone decides they are offended by us?
I am not worried about Westboro. The whole family is a bunch of bloodsucking lawyers so they can and will put up one hell of a battle. More than likely they will win too.
What is important here is how bad a name they give other Christians in the process.