This is possibly a bit late but I would like to point out that "Life, Liberty, and the Pursuit of Happiness" is not in the Constitution. It is in the Declaration of Independence but is not mentioned anywhere in the Constitution.
The Constitution does say this though, I read the entire thing yesterday:
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
The Supreme Court of Wisconsin addressed this issue when it overturned the Wisconsin quarantine.
As for masks I think people are putting a bit too much faith in them. A 3M dust mask is designed to stop dust. A typical sawdust particle is big enough to be measured on a ruler with the naked eye. A virus is only a few microns across, a dust mask simply isn't rated to stop pathogens that size and won't make much of a difference. Plus they don't have a good seal either.
In short it just seems like the modern equivalent of 1950's "Duck and Cover" drills.
If there is a real concern about safety then go to your local Army/Navy store and pick up an NBC mask, you can get Israeli or old Russian ones for pretty cheap. I personally own several. The filter will have multiple HEPA filters, sometimes a contained asbestos filter layer, and activated charcoal. They'll stop pretty much anything, including CS Agent which is a nice bonus.
A guy on Dennis Prager's show, I can't remember his name, had a good way of putting it. I'm paraphrasing a bit but here it is: "Guys working in trades tend to handle danger differently than others; they're surrounded by danger every day and it's a necessary part of their jobs. Any power tool has the capability to maim or kill; when a carpenter goes to use a table saw that saw can easily kill him. There is a safer way to do the job- he could use a hand saw and be almost completely safe from any injury. He's got 48 boards to rip though. If he used a hand saw it would take him years. So here's what he does: the carpenter acknowledges the danger and takes precautions to avoid injury. He puts on gloves and safety glasses and makes sure he's using the machine correctly, maybe if it's a small piece he uses a tool to keep his hands away from the blade. Then he starts up the table saw.
It's time for America to start up the table saw."