We defend him because, although he's not the most likeable character, people exaggerate how bad he is beyond belief. For a start, the World Cup thing wasn't cheating. He broke the rules and took the punishment. If he would have insisted his innocence he would have been cheating. I'm sure you remember Neville doing the same thing in a Derby a few years back... you would have lauded him if the penalty would have been saved. Suarez makes the most out of some tackles, but he's not the biggest culprit. Larsson, Nani, and even Rooney do a similar thing but you wouldn't raise an eyelid because you're not obsessed with them. He gets kicked to bits as well, and people still moan about him hitting the ground when he takes a clear kick. As for the 'Negrito' thing, I'm not making out I know anything about the context of the term, but if it was clearly racist they surely would've sorted this all out by now wouldn't they? Expect a statement about 'cultural interpretation' and a 2/3 match ban.
For all those salivating over a 6 match ban too, just remember, 4 of those games: Wigan, Blackburn, Oldham, Man City (League Cup). I think I just might be able to cope with that.