By proclaiming that Jesus is God can be considered as defamation, because Jesus himself didn't call himself God and didn't consider himself God, and none of his disciples had any inkling at all that he was God.
Idea like this can ruin the society, it can spoil the society and corrupt the society, within. If the idea is corrupt, then how can it not corrupt the nation? The statue of Jesus represents Brazil. It is the face of Brazil. What kind of face is it? Is it a legitimate face or a corrupt face? Well, Brazil is known for corruption, anyways. One of the most criminal societies out there. Yes, we can blame it on the hot weather and low income, but if this is a corrupt idea then it will only boil the corruption, within. It will make the hot society hotter, and the low income lower.
I believe if Brazil were to take down the statue, things will only get better from there.