It's funny because this is literally what OP does.

>Disagree
>Charge the stage to prevent him from speaking
>Hold a large rally to prevent people from listening to a political figure you disagree with
One of these things is not like the others

I'm sure you'd have been perfectly happy if right-wing protesters had repeatedly heckled and tried to disrupt Obama speeches in 2008.

You see, when you take the attitude that you have the right to suspend other people's right to assemble or speak freely based on how you feel about their opinions, it's a bit rich to accuse others of being authoritarian or fascist.