If Pariah means the collectivist people not trading or communicating with you and no violence then I am OK with that.

Now, could you explain how this is collectivism and not voluntaryism?

If you define collectivism is group activity enforced by violence vs voluntarism being group activity not enforced by violence then this entire discussion is a word game and a waste of time.

You can have voluntary collectivism. This is where everyone works to find agreement with the group as a matter of course, but only proceeds if that agreement is found. You might find this kind of management in a collectively owned business for example.