Most anti government people here are either left or anti-political.
We do have a small fascist movement, but they haven't been gaining any strength, because we only got out of fascism on 1974. So there are many people alive who remember living in fascist Portugal. And we get bombarded with anti-fascist propaganda since very young.
The result is a boom of the anarchist movement. You are much more likely to encouter an anarchist on the street than a fascist. The youth is filled with anarchists.
If you are interested in Bordiga, I would suggest joining the Bordiga Literati group and reading some things there and participating in the discussions. The group is pretty inactive besides me and another Bordigist user named Caj, but we can answer some questions you might have reading the material.