The pattern is entirely that of emergency 'enabling law' examples from the past when equally scary things gave them apparent justification.
Boiling things down to 'just asking to wear a mask' is at best deeply naive and at worst arrogantly dismissive. Break out of the soundbites and take a moment to think about what's happening in historical context.
If you want a serious and reasoned analysis of the worries, concerns and threats under these circumstances (at least from a UK perspective) I firmly recommend you view Lord Sumption's thoughts on this matter (recently retired judge from the supreme court of the UK with a long and highly respected career in the judiciary) - https://www.youtube.com/watch?v=amDv2gk8aa0
Unfortunately under circumstances such as the covid-19 mess we all live under (and thank your lucky stars you are in a 1st world country, the 3rd world will suffer at unimaginable levels, highly likely considerably moreso due to covid-19 aid cuts than covid-19 itself) things are considerably greyer than 'conspiracy theory nuts vs. just asking to put a mask on'. If only it were that simple.