Interesting observation about the Brazilian parliament. I do agree about the non-function and that there's almost no discussion but only single- person speeches.
To be fair, numerically most of the new laws pass in a "alternative" voting style where you have only the leader of a block of parties voting for all the block... And sometimes they even form blocks of laws to the voted in this style... So yes, no discussion at all...
You have to understand also that we follow the Roman Judicial System, so we have a hundred times more laws that the Anglo-Saxonic countries...