It's a tragic comedy, how the portuguese media try to feed extremism to get views.
First, they tried to astroturf a "yellow jacket" kerfuffle. Lots of pre-event coverage of the "protest that will stop the nation", with lots of social media presence using vague language to try to get any willing protester to show up.
End result: people for and against petrol taxes, people for the legalization of firearms/weed/street racing, people for/against more animal rights.