Nazis have an ideology that inherently

Communism calls for murder of "enemies of the people" just like nazis do they just happen to have a bit different criteria for who it is ok to kill.

communism does not inherently call for genocide

It calls for violent revolution and correcting the wrongs of the past system.You have to remeber that before Hitler even reached power USSR has caused deaths of 6 million people in Ukraine alone in 32-33 period and tens of millions in preceeding red terror of the civil war and past 33 also caused deaths of millions+ allied with literal nazis.

But for some weird reason i only see "punch a nazi" often accompanied by soviet flags and patches on the crowd of self proclaimed "anti fascists".These are not the people who should be deciding who is a "filthy fascist" that makes him "deserve" being attacked