More precisely, it is about to be forced upon us. Not by law, probably – that being both harder to do and easier to challenge. Rather, by economic means, via the "private" sector – which has become almost-indistinguishable from the "public" sector, i.e., the government.
Which isn't accidental.
The whole point of requiring that businesses obtain permission from the government to be in business – i.e., the business license – effectively makes them part of the government without the difficulty (for the government) of legalities. The Gesundheitsfuhrers have not had to bother about passing laws requiring everyone in America join a messianic religious movement – the Sickness Cult – and wear the Holy Vestment. The government merely threatens businesses with the loss of their permission to be in business if they do business with heretics.