There weren't as many people at the protest as there were volunteers searching today. It just looked like it because there were so many in one spot, the searchers are all spread out.
First of all, what is the use of searching? We know she's dead (ok, we'll say 99.9999999999999999999999999999999% sure), she's probably been dead for over two months by this time in the heat of FL probably some nasty grisly mess, her mom abandoned her car next to a dumpster which means she's probably in the landfill, her mom won't even open her mouth to tell anyone the truth of where/what happened, her own grandparents spout crap about no one looking for her while they continue sitting on their a$$es in the house or chasing away reporters off their lawn (who are only doing the job they are paid to do -- OH! That's why Casey has no work ethic -- her parents don't understand the concept), and Florida, including Orlando, is a pretty big place. Why do something for someone who can't be bothered to do it for themselves? What is the saying "God helps those who help themselves"? It works for us mortals as well.
Second, these people are SO rude and repugnant that who in their right mind wants to help them. They are nasty and scary. Not ONE of them have shed any public tears over Caylee. The only one I've seen in tears was Casey and only because she was going to jail. Even if you believe she is alive, don't you MISS her?
Third, this search is about two and a half months too late. Why search when there are several tropical storms/hurricanes/tropical depressions hampering the search.
That aside, if I lived anywhere where I could get to FL without bankrupting my already close to bankrupt budget, I would be there searching not for the Anthonys who don't deserve any help (and no longer deserve our compassion) but to give Caylee a decent final resting place.