Unfortunately defending yourself against attacking liberals gets prosecuted as a crime. You can read about all the examples where someone standing up to Antifa thugs gets arrested and prosecuted vigorously. Like the guys in New York who ended up fighting with masked Antifa. The Antifa fighters wouldn't even take their masks off when the police talked to them. The police arrested the people the Antifa thugs attacked. And now they are facing lengthy prison sentences for crimes normally not charged.
When I was in high school I was constantly getting harassed and groped by black boys and the faculty did exactly NOTHING about it aside from insinuating I was a racist because I would not f*ck the black boys.
So one fine day in my senior year I stabbed one of them.
That ended the problem and no one bothered me about it.