You cannot have both.
So either those out and about without masks, or protesting the lockdown, etc. AND the current protests are justified as COVID isn't actually a real concern, OR both sets of protests are unjustified because a lack of concern for COVID is in essence negligent homicide, and the current consort should be labelled as the previous.
What you cannot say is that the first set of actions were unjustified but the second justified, whilst in the midst of the same conditions with the same virus making its way through our people. You may try to insert a "but" in there somewhere, but that will be merely a reflection of your political biases or adherence to the narrative of your chosen publication.