I think the issue he was arguing about and resisting was NOT quarantine... He didn’t want to get injected by whatever (they didn’t even tell him what they were trying to inject?) against his will.

I have heard of covid patients who refused ventilators, and doctors had to listen to them even if those people died later on. Then why in this case some kind of “treatment” in the form of an injection is being forced?

That is, if the video is real in the first place