Free speech isn't a right. It's far more important than that. It's a mechanism by which society is able to examine ideas and pull apart those that don't come up to scratch. Simply put, if you can't tolerate Lauren Southern standing on a soapbox talking about the dangers of immigration, then you're pathetic. Because it means you can't come up with a better argument that convinces people that she's wrong.
As for this whole obsession with the far right. Beyond a joke. Antifa's stock response to anyone holding an opinion that is antithetical to their obscenely narrow worldview is to brand that person a Nazi, regardless of their actual political beliefs. The evolutionary biologist Professor Heather Heying was branded one simply for stating at a public meeting that women and men display different physical characteristics in general (men are on average taller than women was her incendiary statement on that occasion). Anyone who voices the opinion that there might be merit in the idea of admitting that Asian grooming gangs are now responsible for hundreds of thousands of rapes in Rotheram and Telford is a Nazi. Anyone who advocates a limit of 100,000 immigrants a year is a Nazi. Anyone who exhibits political opinions that do not correspond to a liberal agenda is a Nazi, ad infinitum.
As for the notion that there's no such thing as Far Left hatred? The Red Terror, the Gulags, the Great Leap Forward, Hungary '56, Czechoslovakia '68, Xenver Hoxa's Stalinist dictatorship in Albania, Mengistu in Ethiopia, Castro in Cuba, the horrors happening right now in Venezuela, the list goes on and on and on. No coincidence that, Vasily Blokhin, the greatest individual mass murderer in human history, was a committed leftist.
Just listen to the screams of 'Tory Scum' and the accompanying barrage of spittle whenever the hard left confronts its conservative opponents if you want to see unhinged hatred.