> What percentage of them would you say have the opinion that the Lava-Jato operation was a farce?
That depends on what details you ask for. If you ask if them if Moro was biased and corrupt, they can simply point to the court ruling that he was.
If you ask them if the politicians who went to jail were all innocent, you'll get far far fewer people supporting that idea.
The details are important.
> 9 out of 10 PT supporters make this claim,
Please share your source for this information.
> The people you're referring to is not 'the left'.
They are. When my friends tell me they are politically left, it's not up to you to decide they aren't the "real" left, whatever that might be.