'The concept of opposing fascism' doesn't mean anything in practice. You have to implement practice around it, you can't just literally do a concept!
Of course it means something. It means the concept of opposing fascism...
you say that as if people are not actively physically opposing fascism in deed in the united states right now!
Fighting fascist is the primary way to oppose them. The fighting bit often requires violence. That's what it takes, because it involves fighting a group of people that are not a peaceful bunch and have very violent intentions.