Fascists don't give a shit that you think you owned them in a debate. A fist doesn't care what sweet words come out of a mouth as it's crashing into teeth. This is exactly the blind spot of liberalism that many 20th century thinkers (some vaguely labeled as postmodernists) tried to shine a light on: Even if there were some objective standard by which you can say you have bested someone with reason in an argument, does it matter when power can simply ignore it?
> Liberals from a previous era would have made ground beef out of an intellectual weakling like Richard Spencer, but to argue a position requires a belief that positions may be argued as well as an ability to think coherently and organize one's own views.
Liberals mocked Hitler constantly until the day he seized power. How did you come to this belief that liberalism has any potency against fascism in spite of the historical evidence?