Come off it. If someone calling themselves Silly McFool said that the page on President Obama should be deleted because he's not the legitimate president, I bet you wouldn't dare to claim their opinion was as equally valid as the people calling it nonsense. Anyone who can claim that the Trayvon Martin case is of no encyclopedic value doesn't deserves to have their opinion count at all, because it's quite obviously total bullshit. If you think it's OK for them to have it heard by default, by them crying to admins when they're called out on it, then you're just enabling the inevitable outcome, total derision of the idea Wikipedia is an encyclopedia at all. This is not consensus, this is rules of the playground.