"Antifa and police provocation" You mean by being there? Fascists (for lo, they were) attacked the anti-fascists and the police, as well as a left-wing shop and vegan cafe.
A collection of a load of videos and articles about what happened in Wrocław and Warsaw can be seen:
Note the words of Professor Andrzej Richard:
What the media said afterwards was a "falsification" of what happened. The "march of the patriots" was unjust from the start, in that it was organised by violent extremists. He also said that "Polish civil society were not developed enough to test just who was the organiser of the parade in Warsaw" and thus went with it, and was then surprised by the violence, which was "always going to happen, when one considers who organised the march".
Oh, and (see the "on fascist violence and media" link above) anarchists in Wrocław and Warsaw were very much supportive of the independence day. It's purely lies to speak otherwise.