You are still asking to encode a qualitative judgement into law, which is difficult even in less democratic countries.

I disagree. In pandemic times every democratic country had a list of safe and not-safe countries regarding traveling restrictions. I demand something similar for business restrictions.

Your plan would ironically make more sense in an autocracy where such ideology can be more easily implemented and enforced.

Laws can better be enforced in Democracies, because usually laws are created so that they reflect the majority opinion and there is less corruption.