If you’re protesting mask mandates by going around harrasing and/or threatening the mask wearers then yes, you should be disciplined up to and including expulsion. And as a previous poster says, you don’t get to block the roads either. The good news is our side generally doesn’t engage in this kind of behaviour.
That is a very loose description of what you think they are doing. Would you consider displaying banners in a public space which Jews find offensive to fall under that description?
If you are referring to actually getting in an innocent bystander's face, then I would agree with everything you said. However, I don't think that is what is happening the vast majority of the time. If you are referring to arguing back at counter protesters or displaying offensive signs, this can't be banned and you are un-American if you think it should be.
I assume you would agree that as long as they are in a public area (not impeding traffic) they should be able to say or advocate for whatever they want, correct?