Sometimes I wonder why I even bother with you.
When you do not understand that liberty and freedom are overarching concepts that can be used at the same time to do good and bad things, really... do not even try to give me moral lessons about leftism or historic leftism. You are really not the best seated to do that.
In a normal environement, they should be able to express themselves, and we should be able to moderate them and show them the consequences of their actions. Hence, those opinions should not be able to be shared by the system.
In other words, no one should be able to stop Bob from saying fascistic things but himself BUT we should be able to moderate what he says quickly and show him the consequences of his acts.