Holocaust denier, HP. Probably still better for Brazil and the environment than his fascist alternative, and the best way of dealing with someone like him is reminding them how thoroughly irrelevant they are on the global stage.
One can criticize holocaust inversion, but that's still a different thing than deniying it.
Lula's specific comments go much further than routine Holocaust inversion, drawing a direct comparison between the facts of the two and stating that there has been nothing as bad in human history besides those two. Ergo, he's either claiming that Israel has killed 13 million people (deranged blood libel) or that only five figures of Jews died in the Holocaust.